It looks like the tank might be in the middle of the room? (can't tell for definite from the picture). In which case viewing from both sides might be desirable and prevent the use of a background and really stacked rocks.I like it a lot - great job.
I would add a background (black or navy) and stack the rocks higher at the sides of the tank, almost up to the water level.
I don' think its a front but can't be sure.Im having a bit of trouble making out some of the fish.. would you mind naming them off??
Is that a frontosa? Im thinking that is that one type of fish that looks like the frontosas but arn't (cant think of the name).... am i wrong??
Also.. Ruby red peacock? - Thats what im thinking... I have one in my 150gal. VERY Beautiful!