Very little I can say, other than MORE, MORE, MORE! Yours is one of my favourite sketchbooks on Conceptart - no lie. I love your gieger-esque creatures, and your recent character designs are just fantastic. MORE!
Your stuff is awesome. Been geeking out a little over your graphite figure drawings. Very nice stuff. The only crit I have is that your digital works lack the same attention to plane changes that your graphite drawings have, but you've improved on that through every digital piece you've put up so I don't think you have to worry about it too much. Very impressive stuff.
If you have the time, please stop by my sketchbook, Chock Full o'Nuts.
I would appreciate any advice or critiques.