I can not show my application icon in iTunes

Question

I can not show my application icon in iTunes

I am making an iPhone application and my client wants to see it. So I created an ipa file but there is no icon:

I do not understand, because there are no problems on the iPhone:

Would I forget the image format?

For information, this application is not in the App Store. This is only for the client and for my boss (they need to be checked).

Thanks!

--- Edit:

Thanks for your answer, but after @Vakas's post, I add iTunesArtwork and iTunesArtwork @ 2x, two png files without an extension like this (but without effect):

config.xml:

<?xml version='1.0' encoding='utf-8'?>
<widget android-versionCode="15" id="com.ionicframework.test5119111" ios-CFBundleVersion="8.4" version="0.0.1" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
    <preference name="AllowInlineMediaPlayback" value="false" />
    <preference name="BackupWebStorage" value="cloud" />
    <preference name="DisallowOverscroll" value="false" />
    <preference name="EnableViewportScale" value="false" />
    <preference name="KeyboardDisplayRequiresUserAction" value="true" />
    <preference name="MediaPlaybackRequiresUserAction" value="false" />
    <preference name="SuppressesIncrementalRendering" value="false" />
    <preference name="GapBetweenPages" value="0" />
    <preference name="PageLength" value="0" />
    <preference name="PaginationBreakingMode" value="page" />
    <preference name="PaginationMode" value="unpaginated" />
    <feature name="LocalStorage">
        <param name="ios-package" value="CDVLocalStorage" />
    </feature>
    <feature name="Keyboard">
        <param name="ios-package" onload="true" value="IonicKeyboard" />
    </feature>
    <feature name="Console">
        <param name="ios-package" value="CDVLogger" />
    </feature>
    <feature name="Device">
        <param name="ios-package" value="CDVDevice" />
    </feature>
    <preference name="AndroidPersistentFileLocation" value="Internal" />
    <feature name="File">
        <param name="ios-package" value="CDVFile" />
        <param name="onload" value="true" />
    </feature>
    <feature name="FileTransfer">
        <param name="ios-package" value="CDVFileTransfer" />
    </feature>
    <feature name="SplashScreen">
        <param name="ios-package" value="CDVSplashScreen" />
        <param name="onload" value="true" />
    </feature>
    <icon height="57" src="resources/ios/icon/icon.png" width="57" />
    <icon height="114" src="resources/ios/icon/icon@2x.png" width="114" />
    <icon height="40" src="resources/ios/icon/icon-40.png" width="40" />
    <icon height="80" src="resources/ios/icon/icon-40@2x.png" width="80" />
    <icon height="50" src="resources/ios/icon/icon-50.png" width="50" />
    <icon height="100" src="resources/ios/icon/icon-50@2x.png" width="100" />
    <icon height="60" src="resources/ios/icon/icon-60.png" width="60" />
    <icon height="120" src="resources/ios/icon/icon-60@2x.png" width="120" />
    <icon height="180" src="resources/ios/icon/icon-60@3x.png" width="180" />
    <icon height="72" src="resources/ios/icon/icon-72.png" width="72" />
    <icon height="144" src="resources/ios/icon/icon-72@2x.png" width="144" />
    <icon height="76" src="resources/ios/icon/icon-76.png" width="76" />
    <icon height="152" src="resources/ios/icon/icon-76@2x.png" width="152" />
    <icon height="29" src="resources/ios/icon/icon-small.png" width="29" />
    <icon height="58" src="resources/ios/icon/icon-small@2x.png" width="58" />
    <icon height="87" src="resources/ios/icon/icon-small@3x.png" width="87" />
    <icon height="512" src="resources/ios/icon/iTunesArtwork" width="512" />
    <icon height="1024" src="resources/ios/icon/iTunesArtwork@2x" width="1024" />
    <splash height="1136" src="resources/ios/splash/Default-568h@2x~iphone.png" width="640" />
    <splash height="1334" src="resources/ios/splash/Default-667h.png" width="750" />
    <splash height="2208" src="resources/ios/splash/Default-736h.png" width="1242" />
    <splash height="1242" src="resources/ios/splash/Default-Landscape-736h.png" width="2208" />
    <splash height="1536" src="resources/ios/splash/Default-Landscape@2x~ipad.png" width="2048" />
    <splash height="768" src="resources/ios/splash/Default-Landscape~ipad.png" width="1024" />
    <splash height="2048" src="resources/ios/splash/Default-Portrait@2x~ipad.png" width="1536" />
    <splash height="1024" src="resources/ios/splash/Default-Portrait~ipad.png" width="768" />
    <splash height="960" src="resources/ios/splash/Default@2x~iphone.png" width="640" />
    <splash height="480" src="resources/ios/splash/Default~iphone.png" width="320" />
    <name>test5</name>
    <description>
        An Ionic Framework and Cordova project.
    </description>
    <author email="hi@ionicframework" href="http://ionicframework.com/">
      Ionic Framework Team
    </author>
    <content src="index.html" />
    <access origin="*" />
    <preference name="orientation" value="portrait" />
    <preference name="HideKeyboardFormAccessoryBar" value="true" />
    <preference name="AndroidPersistentFileLocation" value="Compatibility" />
    <preference name="iosPersistentFileLocation" value="Library" />
    <preference name="iosPersistentFileLocation" value="Compatibility" />
    <preference name="AllowInlineMediaPlayback" value="true" />
    <preference name="android-minSdkVersion" value="14" />
    <preference name="webviewbounce" value="false" />
    <preference name="UIWebViewBounce" value="false" />
    <preference name="DisallowOverscroll" value="true" />
    <preference name="android-minSdkVersion" value="16" />
    <preference name="BackupWebStorage" value="none" />
    <preference name="SplashScreen" value="screen" />
    <preference name="SplashScreenDelay" value="3000" />
</widget>