Nice submission ! The track is really good at picturing an atmosphere. The instruments are great, the composition sounds good too and it's really immersive.
A few things however : the sound effects are a bit distracting, which is a shame because the mixing is really clean. I also find that the track lacks structure, in the sense that instead of a progression it seems like multiple ideas were glued one after another instead of guiding the listener somewhere. I also think you could've make it feel ore "icy" than mountain-like.
Otherwise, great track !