This was rattling around inside my head for a little while now. It's basically power armor allowing for space-travel/combat for my particular style of dragons (IE like Erinsis). I sort of wanted to do a short comic sequence involving it, but decided it was beyond my level of patience and attention span to do (mostly because I'm not practiced with this kind of stuff and I'd probably get bored of it quickly as well) As such I just produced this quick scribble and colouring job in the span of a couple of hours.

I imagine the underside could hold your cliche over-sized energy cannon.

I had no colour scheme in mind, I simply coloured propulsion parts in yellow, and cannons in orange. Aside from the armor plating the suit would be equipped with a shield generator. The power core being located on the back as well.

Other things that came to mind with this design (and the universe this would persist in) is that while there is an on board computer that would be able to execute tactics more effectively that there's usually tech in place to knock out AI systems, such is the need for the biological pilot. The one in the suit also has a self contained environmental suit in case the armor itself suffers breaches and exposure to space.