I think it LOOKS gorgeous. But my two main concerns would be:
What if my favourite colour is in a smaller pan and it runs out fast? And then some colour I don't like is in a stupid huge pan and it's just sitting there, mocking me?!
Also, this would depend on the size of the pans in real life, but the smaller ones look kind of tiny... what if you wanted a larger, fluffy eye shadow brush to do a wash of colour, would you even be able to fit the brush into the pan easily?