.....erm.. arent screenshots supposed to have a plane in them?
Not at all. A screenshot can contain anything of what you like. Good screenshots don't always have to include aircraft - it's nice to see ones without, they give a feeling of "space".
I could make out the B2 just fine in the first one, quite a nice screenshot actually! However I would suggest using a more solid cloud layer if your aim was to contrast the B2 against the clouds.
