It is amazing what you can find while searching google images. I was on my ipod last night, simply typed in "Spyro Concept Art", and among images I spotted this beta store display of Spyro's Kingdom(Toys for Bob's version).
Sketch
Final Design
And a bonus: A video with an early build of Skylander: Spyro's Adventure( notice old toy designs, HUDs, and daytime sky in Shatter Island.)