Thank you, Sara! Of course, there will be more underwater photos - it was not for nothing that I went diving in December :)
Oh, and thanks to you asking about the camera, I noticed a mistake in this post. Usually (above the water :)) I shoot with Olympus E-M1 Mark II, but underwater I shoot with another camera - Olympus E-M5 Mark II. Since a good underwater case for the camera costs about the same as the camera itself, we chose to purchase a case for a cheaper camera, which @kibela usually uses, and I take photos underwater with it.