I woke this frigid morning to find Jack Frost had visited my patio door in the night - the gateway to all my sunrises. The delicate patterns were starkly gorgeous, especially against a creamy orange glow, so I couldn't resist sharing them. I've increased the contrast quite a bit so you can see the details more clearly.
Below is a detail of the previous shot. My favorite part is the little curl in the middle of the top pattern.
Here's another detail of the previous shot. (Be sure to click on these to enlarge them.)