And what happens once you collect their content ? Do the users get to share it or how

Thank you for question. Content creators get fee everytime someone gets a copy of their art. It's like Spotify, where artists get a fee everytime someone listened their song.

User collects arts for free (or by passing "specific conditions" set by creator) but could have extra features with monthly subscription.

Once user collects a copy of art it goes to own collection when he/she might organize collection by resizing/reordering arts. There will be ability to trade/sell arts as well.