Sculpted Ground Cover

Hey everyone first, sorry for all kind of mistakes I will make but its late here and my english is not that good Since two days Im trying to do my own sculpted grass ground cover. At the moment I sell my grass using a full perm ground cover I bought somewhere but I want to use it in much more different ways, so Im trying to do my own.. well lets start... this is the kind of sculpty I need to create :

That sculpty is made out of 16 plant bushes.... each of them has 4 planes... these planes got a front and back view so there are 8 planes in one bush. So I need 128 planes!I choosed a 4x256x0 oblong size to work with. Im using maya to work with because Im trying to master it since I was 14 but Im also familiar with blender. Ok here are my try outs in maya:Well it does not work ^^ so I tried to do the same thing in blender (btw. even if I'm sculpting in maya I have exported the sculpt map with blender) :It was working much better then the maya try's but there is still this small glitch which never changed in all versions X_xWhat am I doing wrong ...I really need to learn this and I hate it that I don't know how to do it , even after 2 days of work >_> Please help me if you can o.o