Great render amlaborde. You can fix that in post work pretty easy and its easyer because you already have layers . 1) select the polygonal lasso tool then hightlight like the photo makeing a box . Then select the smudge tool and push the texture the way the arrows go. Looks better if you take only the edge texture or dont start to far from the edge. The box helps define your edge and constrain the material . A slight blur helps a bit at a low tolerance . Hope this helps