Thanks for all the comments!

Maybe my this setup is meant more for Chinese New Year period!

Dunno why, but I suddenly wanted to have red plants, so here's what happened. Actually I am quite pleased with this so far, also waiting to see how i goes when the Neasea sp grows taller, 30cm to 40cm? maybe got different effect, maybe it wouldn't look so straight line at the top. Meanwhile I am still looking for some more nicer red or green plants to add. Will constantly change the background plants, will try not to touch(except trimming) the moss since it's a heaven for my cherry shrimps (actually inside there are also about 7 CRS).