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So I'm tryin' to make some sprites for a collab effort my brother and I will be working on in our free time this summer and wanted a little input on how to improve the sprites I got made so far.
Right now I just have a couple characters 3/4's poses made, nothing fancy or final so criticize away!

Once again thanks for the pointers, especially ProgZmax, your response and especially the edit you made really helped out A LOT.

Now here's Jay as he is now:

Chances are that this might be how he'll look in the game but if there is anything that someone thinks of that would improve him don't be afraid to let me know.  Things can always get better after all.

First off, thanks for the help with everything so far.  With the most recent revisions we now have:

This.  I'm thinkin' it looks a lot better now but as always I'll welcome any help or suggestions.

On a side note, is it just me or does he look really angry?
Although it does fit him.

I'm startin' to make sprites for the game I'm planning and I figured getting some input from people who know more than me would be a good idea.  Now without further ado, say hello to Jay:

I think the 3/4's and side views turned out decent, but something just bugs me about the front view that I can't seem to put my finger on.  Any and all help would be appreciated.