Where selection Adobe Animate CC on Envato?

Hello Everyboby, I’m begginner!
I can’t find selection on Envato for Adobe Animate CC, i want create pack resize animated Ads banners (html5 canvas) and sale them. But i don’t know where it upload(
What images can I use in my works (people, houses, landscapes). Do you need to pre-buy them on envato or can I use a photo with watermarks?