tank looks good - don't know how well the WPG actually works when discussing the modern lighting options. I have a similar set up (75 a pair of T5HO CO2 etc.) you might try different bulbs or reflectors if you are not happy with the current results.
Mine is run with a pair of Gieselman (sp?) bulbs, and I'm fairly happy with the look and results.
180g - Tropheus Bemba, Syno Petricola
125g - SA Community, Geophagus & Acaras
75g - Planted community