I've had this guy in the waiting pile to finish up and after getting sent home from work early I took advantage of my down time. Screamer was changed into the Cobra Commanders personnal Raven in the GI joe TF books.
I used an Energon Storm Jet as teh base and painted him in black. I then replaced his head with an Energon Screamers head and removed the combiner head. I tried my best to copy the paint scheme of the original Night Raven and applied Cobra symbols were needed. I had to reproduce the Night raven Logo via Photoshop and then applied it to the appropriate wing.
Overall I am happy with the way he turned out.
And as far as the MARS parts go you know it! That kit is the end to all robotic means!