I think the game is very unique, I like the art style, and it has a good concept
I just wish the game had a more enticing win condition and that there was more depth to the interactions between players. For instance, maybe the goal could be to collect x amount of [insert special item] to win, or maybe like a king of the hill where one person has the crown, and if they get knocked into the ocean, they lose the crown and someone else can pick it up (which I guess is kinda what the game is already, but I think the frenzy to pick up the crown instead of just giving it to the next person in line would be pretty fun). You could just simply put a time limit on the already-existing mode to put some more urgency on getting the top leaderboard spot
As for more depth to player interactions, I mostly just mean having more items, which I'm certain will come over time. The two items currently available are just, like, traps, right? I think it would be really interesting to have some more offensive items like some kind of projectile or something similar to a mario kart blue shell. Maybe you could also do something like spread your wings to block other players? but doing so makes you walk slow? idk.
And maybe you could choose different birds with different perks? Like a sandpiper could be smaller and faster, but not pick up as many coins. Or a pelican could be bigger and slower, but it grabs a ton of coins when it pops its head in the sand. Just spitballing that one.
It would also be nice to like customize your seagull and have a username so you can recognize who you're playing with, but, again, I'm sure that's already something you're working on.
I also really want a squawk button like in Untitled Goose Game or Duck Game.
That's all I got off the top of my head at the moment. I think the game is amazing, like I said. I love the idea and the art and pretty much everything about it. I really want this game to get big because I know it can be a lot of fun.