Looking good so far but I wouldn't touch the inner limbs at the moment, try working from mid to outer a little.
The main thing that I would be doing from now on out is really eyeballing where it is taking set. The set and it's location will tell you everything you need to know.
I would unstring the bow and trace the profile of the back onto the tillering board (with something removable!) then every time I exercised it after wood removal I would immediately unstring it and compare it to the traced profile.
Follow the mantra of no set inner limb, a little mid limb and the rest outer limb.
I use this method all the time now and it's hard to get an incorrect tiller - the wood tells you everything!
