So, if I understand you correctly, you cut the bird full shape in 16 gauge steel and painted yellow, and cut the 14 ga foreground with all the detail stripes, etc, and painted that Green? For some reason my head is telling me that you’d want the thinner material in the front.
However, Wow, very nice! I wish I had thought of that for my Canyonlands silhouette! Although, that was pretty short runway so I might have been pushing my luck on that. But, in any case, nice job! I like them!