Weathering Boring Terrain

From a 40k starter set, I thought I'd use AK interactive's different rust colors, then a matte seal or two, then the AK interactive Heavy Chipping Solution to give these pieces some individuality.

Blood Angels Land Raider - Finished Product

Finally, I've finished the Blood Angels Land Raider. Overall, I'm really happy with it, but admittedly, I sped through most of the hand-painted (analog) stuff.  

Initially, this was meant to be a trial of using reds (incidentally, my favorite color to use) in my new airbrush, and indeed, this is the part I am most happy with.  I thought that the shading and highlights worked-out great, and I am glad that I listened to several different sets of folks on different forums that suggested ultra-contrast, since a lot would eventually be obscured by pigments and other weathering elements.

When I put the pigments on originally, they looked perfect: the smoke on the exhaust; the rust on any necessary places; the mud and other dirt caked in the tracks and treads; the spattered mud and other stuff (ash, etc.) on the sides and low back.  However, when I sealed them with the gloss (I used Krylon out-of-the can), it really soaked up the dry look of the pigments, and whilst it fixed itself well to the model, it also ruined the effect of dry dust.

Additionally, the decals are absolutely confounding; they just stick out perfectly (in a bad way), and I really need to find a way to make the decals look like they're one with the model, instead of something that is clearly stuck on. Any suggestions are welcome.

I rushed through most of the analog stuff, as I really wanted this to be an airbrush project.  It could have been better had I focused on that, as a model cannot look good with good airbrush and poor analog, as they must coexist perfectly in a well-balanced gestalt.

Comments and criticism are welcome. Thanks for looking.

Updates: Predator and Khador (Airbrush Experiment)

Here are some of the updates for the recent projects I have been working on. I added ultra-highlights, as seen here:

And here, with shadows added; the grey-green I used was a little too mottled, but I think it'll work out, especially if I add a thin glaze of green afterwards.

And here are some of the Khador I have been working on. I am still using an ultra-thinned RMS White, but it simply will not go out smoothly; I will just wait for my Vallejo white to get here.  It is either thinned to the point of not working, or just shotguns large white dots all over the place. At any rate, the 'Jack on the right has the white highlights (which will be smoothed down with a red glaze) and the one on the left does not.

Predator and Beastmen Hounds — Airbrush Experiment

    Being that I got an airbrush for Christmas, I thought I'd try it out on some older, cheaply-acquired models. All-in-all, very happy for my first run.

The primed model. I used Vallejo Black Polyurethane Primer.

The color gradients.  I will probably add a final edge highlight, but I am not sure yet.

I went over these with some P3 Turquoise Ink, thinned about 8:1.  I really like the effect (whites and greys are hard to get done right with an airbrush, though).