Gem Powered Flying Object
Alright. I didn't know what to do with the gemstones, so I decided to shade them in the similar way the rest of the thing is shaded. Hope you like it.
12 colors - 11 colors + transparency
Too wide? I though I saw flying saucers much wider than this one XD Unless you didn't mean the radius of the flying saucer, because that's what came to my mind when you said "wide". :P
Looks too wide for a flying saucer, nice idea though.