Soft and restful
You used the classic I-vi-IV-V but with a very interesting variation on the G. It is a reversal of C that sounds like a sus4. The suspension of the last chord is very nice.
On the other hand, sometimes the instruments don't play the same chords at the same time. I have the impression that the "marimba" of the beginning accelerates and shifts from the violin.
Anyway for a first jam it's a pretty good job.