On my trip to Antarctica, I would review the photos I had just taken in the common room, as it had large screen HDMI TVs. I had a number of people ask me for copies of my pictures and they were even prepared to pay for them. I provided them to anybody who wanted them for free; why!
The reason is simple, the photographer who accompanies some of these trips is R
ichard Sidey. For me to charge for my pictures would be called "Obtaining Money Under False Pretense".
Your work is definitely on a par with Richard's, you just need to make a name for yourself.
Tony