Dear @pousinha,
In short the answer is YES, it is allowed.

We write in English but whatever you post and is entertaining you can post it here.

Royalfree pictures can be used, AI pictures as well (we find many on Pixabay.com) and Canva is AI too.

As long what you post is the result of your creativity, entertaining to others or to you it will be embraced and supported.

So whatever you need to entertain us/make your post: use it! Drawings, videos, music, photography, generated nonsense, a dot on the wall you are free to express it.

We are looking forward to your language entries.

A great day to you!

@wakeupkitty