These pictures are really beautiful. It reminds me of fishing in Ontario when I was a kid.
It is too bad that the thumbnail shows up as just a gray box. I think that you can fix it by renaming the picture with a simple filename that has no parentheses in it, just letters and numbers. Edit the post and delete the first picture, then re-upload it from the renamed file. It fixed the gray box thumbnail for me.
Thanks for the tip I will give it a try