Firstly I like your assets this is a realy nice grapichs. When i saw your screenshots first time i thought that this is a cool idea for game in single room.
There is a known idea to make a game in single room. This is a good exercise to invent game mechanics. So my first expectations were that in this game you have to interact with devices to gain reach some objectives. Those objectives can be different based on external factor (The Sea). For me this is a cool idea for single room concept.
But this game is story oriented not a gamplay. This is not bad but my expectation was ruined.
What about the game. This is a good implementation of your idea. I didn't meet any difficulties with completing the game. And the strory is really connected with Echo theme.