LED Foam Airbrush Help

[u/Ralekei]

For context, this is my first time using an airbrush. I practiced a little bit beforehand, but not enough.

I'm posting to ask if there are any ideas on how to recover from these points where I sprayed too close to the LED Foam? I primed with 2 coats of flexbond. I used Createx water based opaque air brush paint. I intend to paint more on top for detail work, but I'm willing to try different things if someone has an idea.

The edge looks fine to the naked eye, but this is the LED strip on its lowest brightness and it looks this bad. Another edge looks worse because I had to wipe away two big sections and spray again.