Zach...for someone that doesn't do portraits much, those are pretty darn good. I am another guy who doesn't do many portraits, so take these comments for what they are worth:

#1-- Agreed that this one is overexposed, but to an extent, it "works." My comment would be to crop it. There is too much head room. Also skin tone looks a bit off. I'd play with color temp, tint, vibrance, etc and see if you can dial that in a bit more. Might also up the contrast just a little bit.

#2--This one seems underexposed to me.

#3--the sharp--blur--sharp is a pretty neat effect, IMO.

Overall, I think it is a nice set and would hope your brother is happy with it......because I am not sure if I want to see him angry