I recommend to look at similar accepted pictures and you'll find what you need. You can browse the forum to look for similar threads as well. And finally, take a look to this wonderful guide.
Don't want to be rude, but your picture can be rejected because of the majority of reasons shown on this guide.
But I encourage you to improve your pictures, as I'm sure that if you have access to such images; as soon as you improve your pictures, you will succesfully upload in A.net.
All the best.
....... Gueropppa! ......