Very simple. We post fan art that we like. Please remember to link the original place the art was posted (generally twitter/pixiv), so we can keep up with these artists and support them. Note that this is open to all rumiko works, not just UY.
I really enjoy this piece based on episode 144 of the original anime. Maybe I'm a sucker for dutch angles but it fits the "dreamy" atmosphere.
https://www.pixiv.net/en/artworks/115511329