I make them too-- check my sig. There's also lots of random threads by me in this forum. In any case, these sketches are a result of my lack of satisfaction both in photography (no camera, so having have people with no aquascaping background do the photography for me) and not having desired equipment.
This picture's dimensions/feeling is based off of the ADA 60cm tank, and I'm hoping to try one next year. This summer I'll be studying in Japan so hopefully that'll help towards that project. This drawing is hopefully a "first draft."