Your grip looks good for your arrow pass layout. I think once you start drawing your bow from the correct position that your lower limb will come round a bit more. In the drawn pic that you put up, the profile looks decent for what you need, it's just that your rectangular limb design won't get you there. That design is better suited for an elliptical tiller and for shorter draws IMO.
You need to go ahead and work your tip width down to around 1/2". With that long draw you should have more of a semi-pyramid back profile look to your bow. Right now you need to do your tillering at mid-limb from the sides of the limbs. Taking wood from the sides of limbs is a good way to remove some unwanted physical weight and that will help with reducing some hand shock as well.
Keep us informed, things are looking good. ART