Thats badass! I especially love the rendering of the arms. 2 comments : 1) The feet are a little too simple in comparison to the rest of the character. Therefore , the image is not so balanced because one side has many details while the other is less eye-catching. I'd suggest some reptilian-fashioned legs , like the style you used for the arms.
2) When you colour your linework , make sure the colours blend well between line and object. The blue parts are awesome but if you take a look at the yellow parts , the blue line is stark and feels 2D.