March Image - Big wave

This photo was taken close to Aberdeen in Scotland. I was waiting for a big wave smashing the rocks and I chose the place to have a sunset behind. The sea was almost calm but close to the beach the waves get pretty high. I've done a few shots and when I get home I discovered my shadow on a wave. That surprised me because I didn't plan this effect. But the picture wasn't good enough because the sky was clear. I always try to use the tripod (you have a proof on the picture) so I could make an HDR from three different exposures. After that I add the sky from the other picture which I took on the sea ( working offshore I have opportunity to watch the sunrises and sunsets every day so I have really amazing collection of them from whole world). I had the sky and I had a wave with a shadow on left side but the right side was empty. So I added the wave from the previous shots to have better composition.