I'm no pro, but sometimes I get bored. Here's some of my favorites that I've taken over the years...
Rainbowish sky as seen through the silhouettes of two trees.
From a random hike of sorts.
Playing with light movement, I thought it was cool :P
Moon before an eclipse...
Moon during an eclipse. (I tried... no tripod and not steady hands :P)
My sister's cat. Turned out pretty awesome.