Reinforced L-Bracket

Sirajs's L bracket was close to what I needed, but I was concerned it wouldn't be able to tolerate the stresses my intended use would put it under. I added some reinforcement to his design because I'm too lazy to design one from scratch right now.

It's not going to be the best looking piece, but for what I'm doing that doesn't matter as it'll be hidden away under some padding and upholstery.

UPDATE: So just how strong is this thing? Let's put it this way: The plywood it's screwed into in t