I think you're just blurring everything rather than AAing (which what I see as anti : against, Aliasing: distortion?), and your AAing is distorting this somewhat and using colours that don't particularly make any difference, around the edge of each card especially its all banded to the center which doesn't really make sense.
The white and light pink are very close, I'd either stick to a colour in between or use the difference to do something a bit more interesting. Probably not what you would do but I'd see if this works.

Also I've tried to mess around with the colours slightly, clean up some AA and well its mostly self explainatory.