Where to begin! It is a fascinating work in my view that is as mysterious as it is idyllic. One thing that I continue to struggle with, Guillem, concerns your style - Every piece I hear sounds like it belongs to different era. This lovely quintet (you have 5 instruments here, not 4) sounds like it belongs to the early romantic era, with exception to bars 35-39 which is a nicely executed Monte, (in reference Robert Gjerdigen's terminology) that in this example is more characteristic of the baroque era.
When you post a work, I would recommend that you provide a more detailed description of your intentions, challenges and inspirations for that will help with feedback. Otherwise one appears to be posting purely for the appreciation of the community, not serious criticism.
I'd like to learn especially of your methodology and influences. I personally write in a style spanning between 1740-1780, which is pretty wide reaching considering the diversity that can be observed during those 40 years of music history. However, you appear to write across two centuries, posting entirely different genres of music from one week to the next. So, with greatest of respect, we need to learn a little more about it!
And thanks for sharing. The harmonies fit very nicely and contrary motion is excellent in places.