Looks very neat! Excellent! The sides look great and plenty of ventilation there. I can't work out the lid - it looks like a grid under the lid but it's solid? It could do with the lid being "meshed" as well really. The good thing about the grids is you can re-use them if you ever make another bin cage
How big is the bin actually? It looks quite tall but hard to tell how long/deep it is. It does sound adorable hearing her jumping from her wheel onto a slide. They are funny little things and do enjoy their wheels etc. Our last syrian, when he was young, used to run really fast and then leap out of the wheel and flop on the substrate looking happy.