A little more progress. In spite of my best efforts, I ended up with a pretty big step on the air intake on my port wing. I built it up with Bondo applied with a popsicle stick, then smoothed out after a few minutes of drying with a q-tip dipped in lacquer thinner. This was then sanded smooth after drying for 24hrs.
Detailed up the dorsal turret:
And last night, finally got grey on the underside of the wings. I made a large batch of neutral grey with 2:1 flat white:flat black, and then made two highlight shades in 5:2 and 3:1 ratios. I convinced myself that the tonal variation showed up in person, although it doesn't look like much in this photo.
As you can sort of see in the above photo, I tried some basic weathering. I used acrylic washes, dry pastels, and wet pastels. I wasn't thrilled with any of the results and washed most of it off. There's a little shadow left around the aileron. You may also notice that I achieved a very nice seam free join somewhere that there is not supposed to be one: the gear bay door! After notice that mistake, I tried rescribing it a little. It's not great but no one will see it on the undersurface of the wing.
As a side note, I'm having a huge problem with tip dry on my Badger 105 using model master acrylics thinned with windex. I've tried brushes and qtips with a variety of solvents (windex, water, alcohol, lacquer thinner) but it seems to take a good thirty seconds of cleanign for every thirty seconds of spraying. Other than trying another paint, which I plan to do with my next model, any tips?