In the second [picture, I see where you will be adding detail and it looks very impressive. At the recessed groves routed in or is it that you are adding thin layers of wood and leaving a gap to give it that look?
Just looking at picture 3 and I'm taking it, your using a (plunge) router to make the slots?
Now I can't be sure, but does the upper half of the tank lift off / hinge? Can't really tell in pictures 4.
you do a lot of wood work? craftsman? just asking because of the shop area