I just posted my entry for this month's "Superstition" contest, "Knock on Wood" and I thought some folks might want to see my process for the work.
I started off with some very messy thumbnails and researching superstitions until I find a concept I really like. Knocking on Wood is one of history's most enduring superstitions. It comes from thousands of years of mythology, folklore, and religious beliefs that trees are sacred, and believed that trees housed gods and nature spirits. People have laid hands on the trunks of a trees to seek favors from tree gods and nature spirits, and have believed that knocking on wood would wake up and shake out mischievous tree sprites and fairies. I love painting nature, fairies, and spirit, so this was a good choice for me to play with.

From there, I create a finished line work.

Then, it's time for watercolor!

Finally, I do clean up and a little "digital magic" to finish things up.

I think these little tree sprites would happily stay napping if it wasn't for that pesky woodpecker!