Looks nice! What is your stock? Most of your fish look reef safe, why not make it a reef? I like it
I like the aquascape. Not much to converting it to a reef aquarium. Biggest change would have to be lighting. Looks like you are running stock fluorescent lights. I have a 4 bulb t5 fixture on my 55g tank putting out 216W which does fairly well with corals. Other than that you are ready to go