Just Hue/Sat a bit to change the sky... shot through a bus window on the move, with a liberal dose of layer blending in Colour Burn. But the name... ah, the name... one of those names that came with stirrings of awe and excitment for any young kid growing up in the 80's who had a moderate interest in robots... It reached out to me as I was doing this - a phrase with a heavier footprint in my mind.
Sky Fire - the F18 Transformer. An Autobot, and the answer to Megatron and his evil goons. Retailed in Canada as "Jetfire," all of us who watched the cartoon felt ripped off, cuz "Sky Fire" is so much cooler! ;)