This is so twisted, great work! Good call on the desaturation, this looks finished to me. Any more work will just be extra icing on the cake! Which there’s nothing wrong with having a sweet tooth, but what’s here looks great.
After looking at the first stages, I would love to know how you rendered it. It came out very clean. Is this is a 2.5d render with some good post ZB and Photoshop editing or did you export it to another 3d app?