Two Pieces for String Quartet

Hello everyone,

I'm new to this site, but it looks like a good place to get some feedback. Please take a listen to the attached piece for string quartet and let me know what you think!

The second movement is mostly fine.
The first I just think is awkward, personally. The contrary motion plays around with the tonal center in a way that doesn't seem deliberate. 
The Klangfarbenmelodie in the 9/8 (kind of, you should probably write out the exact divisions instead of using 9/8) is also a touch weird and at a fast enough tempo would probably be harder than just having one player do all of those artificials if there's not a jump next to it.
I just think that movement could be more... present. It seems rather passive as it stands to me. Cheers~