Looks very big for 1.5 years old looks like a 3 year old fish
To tell the truth with the amount of nan light you have it's very hard to tell if the colour is good or bad the problem with nan lights they make the fish look so fake
Most of the Asian aros we see posted the video/pictures are taken with the use of nan light people lot at the red and think wow what a nice fish what they are forgetting is the look of the aro is 50% aro 50% light
Can you post a video of the fish without the fake nan lights so we can get a better idea of what the aro looks like as it's hard to judge with the lights