Creamy: Looks incredibly idyllic - perfect place for a picnic. A picture I would put on my wall. I don't like this style for in-game staff, though, to be honest. It's possible to have characters and sprites fit in, but more often then not they just stand out.
Mouth for war: I could imagine that very well for a vimiscal children's game. I'm reminded of Pokemon, not necessarily style-wise, more from the general vibe and atmosphere.
Cassiebsg: Honestly, I prefer your second version. The few pixels on the right side of the roof, where some of the sky shines through are slightly distracting.
milkanannan & son: Cute. I'm reminded of an old children's book I had with fairy tales, where one was about
Cockaigne and the illustration was somewhat similar to your background. I tried to find the book (probably at my parent's) or the picture online, but I couldn't.
Pogwizd: I can't say why, but this background seems to created most of a distinct atmosphere for me - somehow desolate and hopeful at the same time.
Jack: I love the idea. The light shining through the cracks looks great. I only think the picture is all in all too dark. The light/darkness contrast would still be there with an all in all lighter image.
Votes:Concept: JackPlayability:
CassiebsgArtistic Execution: Creamy