[Jansish]

Try experimenting with the smudge settings a bit more, they're a bit repeatitive.
You should look up some tutorials on depth and flow, try to blend your focal with the background. Maybe try adding a lightsource to your signatures, burn & dodge tools will help a lot with depth, and sharpen ofcourse.
I like that you're using basic fonts but you ought to work a bit on the text placement. Always try to place your text near the focal not in corners (looks bad)
By the way, don't be shy to try gradient maps, photo filters and just experiment with all kinds of colors.