you are amazing and definitely one of my favorite artist! i like that i see a range of styles from simple to the more complex. your character designs are also interesting and from your thumbnails I have to say i wouldn't mind seeing some more finished work. if you ever make a comic or started any project you will have a fan!
... Please please PLEASE do a Dr. Who comic... You're style with the Doctor and Amy is brilliant. Hell, just any comic to read in this style would be phenomenal and beyond. You've got fan's who'd LOVE to see your stuff as a collected comic (Or anything else you may have in mind). Even just a series of 4 page little mini-storys! .. *hint hint*
Without a doubt you're probably one of the finest artists on dA AND you're studies of classic women like Audrey Hepburn and the like is fantastic! And this is all from "Sketches" that look just as awesome as finished work!