I made this digital drawing in GIMP a year ago and originally intended for shirt printing. I don't have a good reference and experience so this is as far as I got. I'm looking for ways to push my drawing further, especially in areas of shading and values at the back of the torso. The subject in the drawing is a bathing woman in a sitting pose, so you can see she has really nice curve at her back. I did the shading based on my imagination because my reference photo doesn't show well. I'm just signing up on this website to improve my drawing skills and artwork. Please help me with my drawing. Show me how can I make it better.