love the concept drawings
here some tips:
things you can or should do:
but all the other is good
great job! i wish i was me the guy who scouted you on this
Where is the background dude?!
Great one, but kind of empty...
Nice but not good with the shadows like you said :/ and it looks kida empty could use a background :/
Reminds me of...
Err... nothing. I don't know what it reminds me of. But it's damn awesome, I can tell ya.
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