Looks pretty nice, and the lad looks like he means buisiness with it.
Might try getting the next one to bend a bit more mid limb and a bit less in the handle area, makes for a more comfortable shooter.
If you just leave the thickness alone, taper in straight lines from the handle to the tips.......make the tips around 3/8" wide, you don't need any wider, and it'll be finished tillering before you even start. Have fun.
Darcy