I like it but i agree that it is kinda spammy, i think it would look a little better if you added ramps to it so it looks more like this:

Because right now i would give it a 6/10 right now since its just not flashy and pops out. I also think it would be cool if later on in the build you could shoot windows and water flows in, then if you opened another room the water also floods in there. Then if you turned it into a game it would force some people to take diffrent routes to get out or have to risk drowning to get to another spot.