I think the left side looks great, the right is a bit compacted for my taste.
I would possibly remove 2-3 rocks or so from the right and either place it on the left (following the same pattern) or use it in the fuge.
As for your hair algea, I had a major problem with it when I first got my tank. I have a lawn mower blenny, a black blenny, and 2 tangs that did absolutely nothing to better it.
I started yanking it out by hand every few days, cut down the light hours and added a phosphate and nitrate remover. (did the trick)
By the way, I like your current rock formation alot more than your previous.