You did a pretty good job but even though I get that you want things to be really readable in a character-sheet, it wont hurt to have a bit more expression. Even in character-turnarounds you can often see that the artists give them a little bit of a pose and expression, that suits their character. So you dont have to approach it that stiff, I did that too in the past, but even subtle poses and expressions can really be beneficial to showcase a character, even though its not supposed to be an illustration. You dont have to limit yourself to neutral faces and iterations of T-poses like its a stiff lifeless 3D-model just bc its WIP. This can also help you to figure out what the character (inside and out) of an oc should be. Hope that helps.