Thanks for listening.... Yes, you're right about the harp in the beginning. Somehow, when the strings take the arpeggios I wanted them to be heard more than the rest... Perhaps I went too far.
I will go over with your suggestions (and the ones by MJFOBOE), and I'll try to improve it.
(There has been a long time I couldn't sign in the forum with my usual identity, I don't know why, a problem with facebook). But I'm back to enjoy the music of you all.