That does look nice. I'd found I had a lot of similar problems when I was learning to use a panel line wash. Two things that really helped me figure out the look I was going for are: as Nathan says, a better gloss than future, I use Vallejo's varnish, and mostly spraying it from a single action airbrush. For some reason, my double action (Aztek) gives me a pebbly finish, where my $30 dollar badger single action lays out a nice coat. Spray it on wet, but not enough to run, it's a tricky balance to master. The second thing that did it for me was allowing my oil wash to be a little thick. I know, it sounds wrong. I am using oil paint with odorless turps. What I then do is take a clean brush DAMP with thinners (I brush the back of my hand, if I can see thinner coming off, it's too much) and gently clean away the excess wash with light strokes. I don't work in one area too long, if I've made two or three passes with the brush in one spot, I move on and come back to it. This way I don't 'work' through the gloss and paint layer. That's just from my experience and a few ruined paint jobs.
Again, not saying this is the right way to do it, this is what's worked for me. Hope that helps.