MCW Enamel Finish Issues

[stevieb54]

Newb here with an airbrushing paint finish issue. I am refinishing a metal model car to practice painting before I venture into plastic models. I have primed, wet sanded, 2 coats of MCW Highland Green paint. Wet sanded again, primed with Duplicolor ceramic primer, 2 more light coats of top coat. Heres my issue, the finish on the body keeps appearing a satiny look BUT, this is what baffles me. I sprayed a spoon with the same mixture before I did the body and it came out perfect. I used hardware store lacquer thinner, but on the original coating I used some Testors thinner and it hasn't made a difference. Any suggestions? Im pretty sure if I hit the topcoat now with a sand paper pad then clearcoat it, it will look awesome, but for the life of me I cant figure out why the body is not coming out glossy. TIA.