The words are in Spanish so that may leave you at loss but pictures say it all wait til you see the end result. I will say two things are not right about this tank the fish have no blocking of views of each other (but they can't get to each other) and the height looks wrong. Otherwise it looks nice. The betta are beautiful too!
I have a similar idea for my sections. I am planning to cover the dividers on the front of the aquarium. I was planning a theme for each section. But one theme does look nice.