I really dig the atmosphere of that Tower.
The aesthetics are really impressive to such as the rainy effect when your scaling the walls outside the tower. It's a really nice touch.
The way the Cloud Flower can really help traversing the tower is done well as I've seen people use Custom Powers and not really build levels around theme.
Mario having an Idle Animation also makes thing feel more lively too.
I don't have much left to say other than Great Work Ralshi!