While we are not hardcore about unfinished pixelart, please finish up your mockup before adding to the gallery. The forum is always available if you care to share the knowledge.

though, the perspective is unusual and good. I can sence a potentialy good artist)

then the WIP sectiopns is what you're looking for.,

I just started, so I am not that good at shading, I focused more on character/mob design, so I kind of need some help with shading...

Unfinished usually means it should be posted in the WIP forums rather than the main PJ site.

If I were you I'd definitely avoid using the spray can so much. Probably avoid it all together, actually.