So the bottom right should have a diagonal line just like the top right part of the picture.
I am also going to challenge you to shade the character in the D with respect to the light source (the sun). Focus on the face and the jacket.
For the legs your knee is a little too far down on the leg, remember that your thigh is shorter than your calf.
It is looking a lot better though, I like the illumination effect that it has.