Is the healing from this mole shave biopsy normal? (photos)

I had a shave biopsy done on a mole about two months ago. The mole (as pictured below) was dark in color and had a small black spot in its center. The results showed it was benign. My concern is with the healing at the site of the biopsy - the brown color seems odd to me. I have read that pigmentation can be left behind during a shave biopsy, and I want to see if that's the case here. I have included a picture of the spot after 2 months of healing. Does this look normal? Is there cause for concern?