Marauder Alistar needs more contrast and colour!
The Marauder Alistar skin lacks contrast and colour, and the different parts of his armour is therefore harder to discern than the different parts of the other Marauder skins. It does not help that the armour pieces are on top of each other or closer to one another than on the other models in addition. My suggestion is therefore to edit the contrast of the armour around his neck to be in line with the armour on his back, and change the colour of the armour on his throat to red, to more easily separate the head from the torso.