Nice job.
Color count is somewhat high (78) but understandable in a game project.
The PJ gallery does not allow scaled pixelart as you have done in the preview file.
Use the 'edit it' under the art to upload an edit that is 1X and then hit the submit button, thx.
Fyi, Preview files over 10k do not show up on the front page.
The colors and shading on the character is very thorough and vivid, but it makes the rest of the scene look muted, like there are two different color palettes. It makes him stand out but it does so in a way that make it feel like he is too awesome to be there in the first place. :P