Thank you, guys!
Everything you've said about changing and evolving is a really good point, and I really understand that my music lacks that. Most of the projects I worked (casual and mobile games) didn't need that aproach, but I think that I should develop my skills to produce more dynamic and evolving tracks in future
Speaking about "Hundewache" - it was produced for an indie 2d adventure game of the same name, which, unfortunately, was cancelled about a month ago. This particular track was produced for an intro scene: old sailor sits by the seashore, right after the great storm that damaged his house, his ship and the lighthouse he has to take care of. Lighthouses are very important for this world, beacuse they are the only way to navigate between different floating islands, and our character's duty is to keep them working. He is sad and tired, but he understands that he has lots of work to do, so he is just taking a short breath before starting a long and difficult journey. The whole scene was a kind of meditative, an so is the track.
Speaking about concept - it was a kind, pensive and very intimate story, so I decided, that minimalistic and intimate soundtrack with only piano, violin and atmospheric sounds would be a perfect fit for that. This was a concept of a whole soundtrack, not this particular track. Anyway, this project is already cancelled, but maybe one day I'll find something with a similar mood to use my sketches.
Many thanks for your advice - it is very important. And thanks for the reference track, Keith - they are both great and really distinctive.