Your forestock is heavy at the lock. Measure the vertical height of the forend at the entry pipe, and transfer that measurement to the stock at the lock...you can add 1/16" for a taper if you like. This will show you that you have a very fat stock vertically at the lock. If I were building it, I'd take away all of that wood down to the line I've just described, re-inlet the trigger plate and guard. Regarding the guard, inlet the forward and rear extensions so that they are flush with the stock. You will likely, after doing this work, have to plug your pin holes for the guard, and re-drill. I drill the pin hole for the forward part of the guard through the lock mortise, so it does not show on the lock side at all.
Your wrist should not be much deeper than it is wide. Re-inletting the trigger and guard will take care of most of that, as you will have to then bring the bottom line of the butt stock up some.
Others' comments are valid. The top line of your off-side panel should originate from the top line of the side flat of the barrel at the breech - not the top of the barrel. It should follow the same approximate lines as the lock side panel. So shape up the lock panel first, make a tracing from cereal box card stock of it, cut it out, and transfer it to the off-side using the lock nails as index.
Keep us posted on your progress, and enjoy the process.