Gorgerous!!!
I am going to give Superion a try too. I just received the
ROTF Superion with the add on kit and it looks nice but way to small! LOL
I ordered 2 universe classics powerglides, a universe classics Jetfire, a universe classics Tread Bolt (Jetfire mold) and a universe classics Silverbolt.
I am still waiting for my Supreme Starscream to arrive (1,5 months

) and I have leftover primus and Unicron.
This should be enough to make something nice, I hope...
As it catches a fragment of the same look as yours I would be happy!
What battery and switch do people use to light up the heads anyway? The switches I can find are way to big..