I've always loved humpback whales, they're amazing creatures and their songs are incredible.
Here is some whale song for you: [link]
This is the largest wood burning I have ever done - it is a sycamore circle that is 7 inches across. I always, always, always draw onto the wood with minimal reference and burn freehand. I get a lot of questions from people asking how I transfer images onto the wood. I don't, I just attack the wood!