Pretty nice! The plants sure look healthy.
Madagascar laceleaf has a reputation of being difficult. That proves your skills of a master.
If you want my opinion, the plants in the middle are taller than the edges, most people try for an amphitheater look, with a big non living piece (such as a rock or log) As the centerpiece. Sooo you could work around that. If there was an open area perhaps the rainbows would form better shoals there, who knows.
You can also see a little hole without vegetation near the centre but to the right of the tank, at the top half. They will probably eventually grow in to it though.
My tank sucks now
Fraternity of Dirt # 22