GBC version of an Earthbound/Mother spinoff prehaps? 

Awesome mockup, the sprites have personality :D

It's a good work :)

 Cute and clean.

I like it =D

The purple color is a bit disturbing to me, but the rest is simply lovely

I think there are some forgotten white pixels next to the green char on the far right side.

 Hell yes! Feel the need to talk to NPCs. 

Super-excellent stuff.

 Really like this style!

Thanks for the comments! And  yea @ Rayovatron shadows are nice but I wasn't using them quite yet at this stage, haha.

Nice work! Love how it reads great and the strength of the color contrasts! 

 Add shadows under your characters 

 I quite like how the cliffs were rendered.

so good