Oh cool The sounds themselves are very nice.

Well, the seaguls sound like they're going by for a split second and then quickly vanish. Perhaps it's more wise to add the seaguls as a separate soundfile, and make them vanish less fast... maybe add a second soundfile with another variation of seaguls?

The loop is kinda repetitive (though not that bad, really). I understand that this is a very hard thing to fix. Like with the seaguls, a second file with a loop that transits to and from this one could be of help, but maybe that's too much work for you.

But this sounds nice so far ^^ great job!