I completely agree to your opinion Len, but it's all up to everybody him-/herself. I find Karel's 2nd image well worth to be taken as the challenge image, it's beautiful and represents a spirit in the sky very well. I agree to Mies here - why not make it short and take it?

I fear it will be a hard thing for me too to find anything matching this theme though...so this is a real challenge indeed! ;)