I have improved icons a lot. I have changed almost everything : they are bigger (to fit better in any resolution), colorful, with improved gradients (Really nice 3D effect...).
Size
Magic : 
Shade : 
(It looks less flat)
Outline
Magic : 
Shade : 
(Edges are really soft instead of Magic)
Shadow
Magic : 
Shade : 
(humm really better shadow effect)
Gradients
Magic : 
Shade : 
(Better 3D effect with this oblique gradient)