i have made a spitfire
i have assigned a dielectric material to it and it is lit by hdri
i want to composite it so i want the red colour diffuse to appear on my composite but i cant get it to work it always has transparent spots in it making it look crap and makes a lot of work to clean up ne ideas how to get it to include the diffuse

go to my link where u will see a clean version and an unclean one so u can see ne 1 know how to get around this.? alsosome of the other pics show this diffuse that im after later in the gallery
linky

thx
p.s check out the rest of my work