The simplicity of this really works, a slow and evolving texture mirroring the smooth emptiness of a snowy landscape. I liked the instrumentation choices, with bright higher frequencies suggesting the brightness of ice but muffled bass drum, just as lower noises would be muffled in a snowy environment. The harmony is evocative too, unresolved and slightly melancholic, it definitely works with the idea of a group of lost sailors travelling through unfamiliar land.
Bringing the melodic synth in halfway was a nice touch, something new to focus on and drive momentum after nearly 1.5min of mostly ambient chords. The only thing I would suggest is that the melody is quite dense, particularly in contrast to the rest of the track. Maybe consider leaving some space between phrases to let it breathe a bit more. Great job.