You are very great at making pieces with solid value structures, harmonious palettes, and a generally strong sense of lighting. You have the art part of things down; as ptoing is stating, I think these pieces need a little bit more time to really get to the pixel level. I really like the texture you are getting in the cracked dirt in the lower right- this piece is already a bit farther than others in terms of how well you have applied pixels.

May I ask what the homunculus is doing? Mourning the dead and buried? Walking around in a mountain scape just cause? Giving him a more concrete purpose may help you in finding a better pose; the current one is a little static and very symmetrical.

Your works so far are very ambitious, it's really great to see someone do work at this level and choose the pixel medium to do so.