Unreal Mats FTW

So I've started the process of bringing my concept to life.  Wanted to set my base approach for both tech and art so I put together a tiling bit of wall and went about making my first Unreal blending material.  It blends between the wall's normal, base color, roughness, and detail normal to a snow color and normal with it's roughness set by a constant.  To control the blending I'm using painted vertex alpha in Unreal and a height map for the bricks in my wall.  Overall I'm pretty happy with it; I think I'll get a ton of variety out of this single piece by breaking it up with snow.  This pic shows four of the wall pieces together and I think it breaks it up nicely.  And if I wanted to tweak it more I can still paint some vertex colors down as well :)