Flames of War Sherman M4A1 Complete

My first attempt at really weathering a 1/100 scale tank.  I think it turned out pretty well.  The mud is gloss acryllic gel mixed with two different colors of pigments.  Once that was dried, I put some static grass on it.  The grass is a bit green for what I was trying to do, but I think I can buy some darker, 'muddier' colors.  Ive also tried to dirty it up using water soluble oil paint...it also turned out well.