This one was drawn based on a photograph of a model I worked with, in pencils, then inked, scanned and worked in PhotoShop with a tablet. I suppose it's less of a 'character concept' and more of an 'illustration'... The original photo can be found at http://becka.onlinemodeling.com/.
This one was a freehand pencil sketch from my imagination, scanned and worked in PhotoShop before I got my tablet, using a mouse. This one is more of a character concept, though I'm not sure what sort of character...
Any comments or criticisms would be very useful. At this point I am stumped as to where to take each of these images, and advice would be much appreciated.