Nice job! I really dug the mysterious atmosphere with this one. I liked most of the puzzles, although the one involving the semaphore gave me a lot of trouble. I don't think I could have finished that part without a guide; I didn't even realize there was a man standing on the boat or that I needed to move the beacon in the direction of the bell sounds. It was hard to figure out what things were clickable, so I ended up just trying to click everywhere on each screen. The disks also, it wasn't obvious to me that they were supposed to go from brightest to darkest top left to bottom right, and a couple plates in the middle looked identical in color.

I feel like the mostly grayscale color scheme was probably to enhance the mood, but I think maybe a bit of variety with the color here and there would have helped identifying things that were important for the player to look at (like maybe the man's flags were colored red or something).

That angry seagull made me laugh for some reason, I think because it was happy looking but then mad when you click on it :)

Great atmosphere, simple but gives a great eerie vibe. I couldn't get far I'm afraid... But mainly because I'm trying to give as many jam games a go as I can so not really giving it enough time ;)

I got a bit into it, but eventually came to the conclusion that I had to do the safe, the problem was I had no idea how to do the combination puzzle with what was given on the observation floor. But amazing game! I love the art and the sound design was pretty nice. I would say the movement of the character at the very beginning was a bit off, and holding all the discs was a tad annoying. Besides that, I am not sure what to say in terms of improvements, overall, just a great game and was just a bit too difficult for me lol.

Very cool game. I loved the aesthetics - going black and white was an excellent choice. 
I was a bit lost with some of the puzzles, so I would have appreciated a bit more feedback than just a grunt ;-), but they were fun nonetheless. The fact that I got my training session in by walking the stairs a lot more often than it would have been necessary can be considered a bonus (or the righteous punishment for lack of thought ^^)
Now I want to know what excactly happened and why... Glad to read you will flesh out the story a bit.