What's your favorite fan made skin concept?

I've been thinking of the skins, and I know they take time to make - but as others point out there's little diversity sometimes. Ekko has 2 skins this year while others have not had a skin in several years.

So I was looking around and coming up with ideas (I love but her skins are pretty bland and outside of the Program skin they have such small detail it's hard to see while playing). Front page has a Twitch skin thread due to his lack of skins. Anyway in my attempt to come up with ideas (I'm no artist) I found a few skins that were awesome concept and I'd love to see be made.

This Midnight Soraka skin is a pretty cool idea for a darker theme. But I really enjoyed the idea of a demon version and thought that a Succubus would fit (since she does suck the life from people) and found this.

So, what skin concepts have you found that you would like to see made?