Pretty much the same thing that Pawplays said goes for me as well, though the only thing I would add to it at this moment is that you cluster detail in places in a bad way. Like on that head you have that one area in the front that just has a shit ton more going on than the rest of the head. I mean I guess you can call that a focal point, but its just doesn't do it for me. Besides that I like your line style and what not, would love to see more from you in the future.
Maybe try doing a steam punk type of set, I would be interested to see someone pull that off.