WIP3: Terri's Ring in Graphite Pencil

WORK IN PROGRESS Part 3: Current Page. The scan this time isn't too bad, the pic shown here is a bit sharper than the actual drawing, but the contrast and brightness levels are pretty close.
WORK IN PROGRESS Part 2: ([link])
WORK IN PROGRESS Part 1: ([link])

Photo used as reference: ([link])

Size of Drawing: About 4"x4"
Time Spent so far: 45 + 60 + 45 = 150 minutes
Pencils used: Royal Graphite 3H, 2B, 6B
Kneaded Eraser, Stump

Worked on the shading and highlights. Reworked the upper left loop, looks better now.

Slowly getting there.

Any thoughts/comments/suggestions?