Ken, excellent image and I can only agree with comments about the detail of water droplets on the whiskers and the water splashes around the walrus. I would also like to see a slight contrast adjustment.
Agree with the above points and have some suggestions on the processing.
In the repost I cropped some off the top. I did a USM sharpening at 175/0.3/0. I then did a local contrast enhancement using USM at 20/50/0. I feel the LCE is a better alternative here then a curves adjustment to increase contrast.