Hi @Marc Deflin!
 
	I generally enjoy the mood of the piece. Are the chords in the first A section intentionally bare? Sometimes the chords only have their roots and fifths and it sounds bare to me if it's not fitted to other purposes. I like the D major sections more since they sound more flowing and melodious to me. 
 
	Personally in b.16 the viola should be in C# instead of C for a melodic minor ascending, and b.26 cello C# instead of C to prevent the false relation with violin I if you do not do it intentionally.
 
	Also ending it in D major sounds a bit unfinished to me, since it sounds like the whole A section in E minor without clear purpose. Maybe add a smoother transtion before b.55 so that the turn to D major sounds more definite and reasonable?
 
	Thx for sharing!
 
	Henry