Was browsing through some files... found these VERY old pictures. Some are just concept sketches, some are full-out drawings. These were all done when I was about 13-14.
Not sure what age you are now as I haven't checked your profile but these are pretty damned good for a 13 year old. I particularly like the hand, foot and back detail sketches. Assuming progress has been made over the years, I'm sure you must have a mass of useable material. Get building immediately.