Unfortunately I think the body and your designs are getting lost with the reflections but I really like that ! Great colours, nice simple design, looks ace !
Stop painting bodies for an hour or so, play about thinning the paint, see if you can write your name with it or sign your signature, not stupidly small but quite fine. At some point you'll get to that sweet spot where it's flowing through the airbrush nicely and giving you enough colour but not doing the nasty spidery thing. That's where you need it, if you over thin it come back with some more colour to thicken it up again. It's a real art to getting it right, I don't both so much with these, splodge some paint in the cup, splodge some thinners in, mix it up a bit with my brush and spray. If I'm doing artwork though I mix each colour in a palette so I know it's exactly how I want it to spray.