Yea, I think the left eye hole is way to big. Its overlapping the edge of the tree stump and touching the arm. If the eye was going over that far there should be an indent from the hole wrapping around the edge of our viewpoint. That wouldnt look good though, so I would either suggest making the eye holes smaller or adding some depth to the black blobs by lining part of its perimeter with a dark brown, so you can see that its penetrating the bark etc.
