i really like that structure you built, it looks like something you may find in a creek/river/lake that naturally fell there, i also like your tank, its very pretty. i hope it all goes well, and i hope that your fish will love it. good luck! and i just wouldn't bother commenting back to MSG they seem to be trying to make your tank THEIR way, but its your tank so do as you want, building the inside of the tank is always the funnest part! :D so don't let any one spoil it for you!
MSG, i understand your just trying to help, but Star knows what they want and is going to build what they want. you can build your tank your way, but you have no control over theirs.
Thats the best part about not having to share your fish tank with the whole world, they don't have to like it, as long as you and your fish do.
Good luck! :)