I love your Falke! The cockpit is great, and I love the colors you've chosen for the finish scheme.
I've had that same kind of wrinkling happen with decals on my Raptor kit. The dekkles just didn't want to confirm to surfaces that were sharply curved, like protruding bumps. I wound up using a combination of poking holes with a sewing needle and slicing with a Nr 11 blade, and repeated applications of decal setting solution. Then I touched up with matching paint, but also weathered over it. That's the great thing about MaK--something like this happens, just weather it!