Nice going for a 1st attempt, What I found when trying to bend metal in a tight angle is it is best to use 2 pieces of right angle metal that are slightly longer then what you are trying to bend and then nut and bolt both end just past the metal so that you get a nice tight clamp then use a thick piece of wood and just hammer it along the wood going back and forth. It takes a little bit of time but it works out quite nice.

I came across someone modding a side panel that they needed to get the engraved pattern to light up what they did was drilled some small holes around the edge of the plexiglass and then put led's inside the holes which made it light up really well, not sure if it will help with what you want to do but it might.