Bit of guess work but got there and worth the effort.

Difficult to complete, but worth it x.

Lots of trial and error, then a little guessing at the end.

It's all guessing, except for parts of the feet. Eyes at (r,c) 9,7 and 9,11 and mouth at 11, 8-9. Good luck, not sure if that will help.

Thank you very much for the clues!

Hint: the 6 in C3 starts in R5. this will give you most of the top half (a 50/50 guess on the face) and that gets you far enough to guess the shape of the arms.