Help with Home Sharing

you can't

apart from using airplay mirror while having the ipad rotate images

though if you use icloud photos you should be able to have the appletv show photos from there

View iCloud Photos and Shared Photo Library on Apple TV - Apple Support

I can tell you how to put all of your apple music onto an android phone without ever going near a PC. Connect the iPhone to the android using smart switch and simply make a backup of your iPhone such as pictures and music and then throw away the iPhone and enjoy your Android.