I think the bevel could be more proactive to address the separation and flare forward. Flare forward is one of the hardest pathologies to remediate. It didn't get this way overnight and it won't be fixed overnight. Its consistant trims and maintained bevel and pulling the heels back as you go to arrive, so patience. You can't trim it off, have to wait for tight connection to grow down, obeying the sole as you go...so takes time.
The central sulcis crack is harboring infection and your homework to make sure that its kept clean right down to the bottom of that crack, or an invisible line of infection will still be working at the bottom of it unseen. Get it and keep it clean and it will heal from the bottom up, getting shallower. The central sulcis should be a mere thumbprint depression on top of the frog, no crack.
This is what the goal is...when this foot has arrived. Patience.