For those unfamiliar with Sunstorm, he's kind of an enigma. In the first episode of the TV show a few extra, random coloured, Seekers were added to the Decepicon ranks to make them more intimidating. These nameless army builders disappeared shortly after the Decepticon forces reached Earth, and some people assume they were just one of the many animation errors and were actually intended to be Thundercracker or Skywarp.
Years later he was given a backstory and added to the Dreamwave Transformers universe. Here it was stated he is a mad clone of Starscream, since then, yellow repaints of Starscream have been common in both the US and Japanese toy lines.
I may tackle Acid Storm next, another random clone now made official in various media, but I'm starting to bore of this design and may just try to come up with something brand new instead.
Short list of possible new designs:
I may also take some ideas from this frame to make adjustments to Omega Supreme and Grimlock as I was never entirely happy with the way they turned out.
As always comments and ratings are welcome, spam not.