Slncapri,
If your flames are to have an outline, outline them w/ the color pencil.
Lay down your base color w/ the marker. Apply your frisket film, be sure it isn't too tacky (test on paper) it could rip the fibers depending on the brand.
Take some make-up latex wedge applicators and rub it on the pastel color of choice and start laying down your fades.
http://www.spongeproducers.com/produ...x%20Wedges.jpg
You can get the wedges at Wal-Mart. Fold them up to make then firm. You can also scrape the pastels w/ a knife onto a paper plate mix in a little baby powder and dab the wedge then apply color, just play around on blank paper first, experimenting.
For your black, let the solid black marker be your horizon reflections, use the pastels for your sky and ground fades on the body. Thom Taylor teaches to lay down your light blue rub that in, then lay down your black pastel and rub that in. If you can get your hands on the Hot Wheels book and Thom's book
How to Draw Cars Like a Pro. Check half.com
Take care,
Thanks Zee
Al