Looks good, go with the black background and a bit more bogwood and plants and it will look awesome !
I saw a tank like that in an LFS and it really impressed me. (Birleys I think near Doncaster)
its not the greatest set up but its only temperary.tanks 48x18x18 has 2 filters 1 fluval 2 and 1 fluval 3.no lighting otherwise it would be more planted