Looking great! Did you find you got more even coverage and blending of colours with the airbrush with less effort?
Love all the detail. Any reason you changed the final lines on the carapace to being more sparse? I know it's time consuming but reckon that even filling in between each stroke with a thin line brings it together.
I'd also recommend using the Dakka Gallery and use the Forum links on each pic to embed images from there into your posts.
Excellent work on the canon. Love the greens.