Black Rose Cassiopeia (skin concept)

So I made this sketches and concepts for a Cassiopeia skin, I believe it is really cool, considering Cassiopeia is a high status person in noxus and also considering that the black rose has been reaching and growing influence with the high people in noxus. I think the theme is quite good and fits Cassiopeia.

Her particles.. Q being a red rose that quickly turns black and explodes in black petals. Her W would be a dark red smoky area that releases black petals. Her E could be turned red and leave some black petals as it travels, and her R would be a black light that turns enemies to stone with black roses plants entangling the enemies. So what do you guys think about this concept?