First composition. Need help with this harmony.

[countrymath]

Ok. I've been studying harmony for sometime, and now I think i'm ready do write my first composition.

It will be a 1:30 minutes long string quartet, using only I(6), V(6), V7 and VII6 chords.

I want someone to check the harmony I wrote, and help me correct any mistakes that I made, so I can start composing.

Thnks

[countrymath]

OMG.

Just realized that I posted this on Audition Room 

Can someone move it to the Music Theory forum?

thanks 

[countrymath]

Can someone help me?