Add some wood molding to cover the ends of your lumbar. Some half-round will work or use rope molding. Then stain that badboy a light stain or forget the stain and just use poly on it. It will look 10x better, I promise.
Anywho, looks really nice guys. My only concern here is that heater you have if it's still hooked up. If the desk is going to be sitting there, personally, I've had problems with heat messing up the desk through the seasons. Don't really know how much a heater affects desks, but the one I used to have got messed up after a couple years from sitting over a vent.
I didn't notice the backboard against the heater before but it will likely cause some problems so perhaps you should rearange some furniture in your room. Wouldn't want to go and mess up that nice new desk.
Rage sent me a PM, Scary-MoFo has been taken care of.
The heater might pose problems but there isn't an option in his room. The desk has to go there. Are there any non-flammable, heat insulators that we could possibly slip between the heater and the backboard.
Also in turns of pricing it broken down like this...
3/4" x 4' x 8' Oak Plywood = $39.99
Cut Plywood (5 Cuts, 2 Free) = $0.50 (x3) = $1.50
1" x 1' x 6' Pine = $8.50
Cut Pine (1 cut) = $0.50
Metal Square Thing to make right angles = $4.00
Measuring Tape = $3.00
5 lb. box of wood screws = ~$10.00 <-- somewhere along those lines because it was a 5 POUND box of screws. A bit overkill...yes.