There is too much empty space on the left and the colors dont match the render. Delete or desaturate the color blanance. Duplicate the render 3 times and cover the whole sig. merge those 3 layers and place it on top of the brushing. Filter>Pixilate> fragment. Do that 1-2 times and set the layer to overlay. Might wanna lower the opacity and duplicate the layer and move the duplicated around. just one of the many ways to color a sig. hope you find it usefull.