Looks pretty nice, and the lad looks like he means buisiness with it.
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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.
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Darcy