Nice looking NMF, adhesion woes notwithstanding. If I may make a suggestion, for your next NMF take the time and shoot a primer coat before airbrushing your Alclad. Some folks swear up and down that you can spray it directly onto bare styrene, but they're the exception.
I've used Alclad on numerous projects and every time I've primed with Mr. Surfacer 1000, which I smoothed down with 1500 and 2000 grit polishing cloths. Over top of this, Alclad is absolutely bulletproof, standing up to masking, handling, weathering, etc.
Cheers,
Tony