Definitely wait for advise from more experienced bowyers than me, but it’s kind of hard to see fine detail against the backgrounds you have. I think at this point your tiller looks pretty good, and at 33#@23” I’m betting you’re awful close to your desired40#@26” before sinew. You will have to adjust the tiller after you apply sinew but I don’t know how much weight gain you might gain with the sinew. But I’m guessing you might want to add it before tillering any farther.