It is true that this idea is less controversial but, it is not very creative.
"- Creativity: Your Gym theme should be creative and unique."
Your old gym was much more creative, and I like that idea better.
Though I have no problem with your new gym I think it would cool to stay with the creative idea.
You have a good chance of being swept clean in this gym too.
Aside from less creativity, I see no problem with your gym.
So, it really relies on what the other say~