How to do an overlaying custom flame job
This how-to is assuming that you already have the first flame job completed.
After you've sprayed your first flame job, add a coat of clear, then resand with 800 dry.
Then go back over with 1000 grit wet. This is what it should look like.
Now basically just do another flame job on top of the other one.
This could be kind of confusing when you do it with some colors, so try a darker base and first flame job to start with.
This is another pic of it. Once you get it all masked up, you can airbrush the edges. Make them transparent so you don't 'kill' the other flame job