Harmony Question

While trying a single movement violin sonata (again) i ended up getting stuck on a chord progression.

I've then tried many chords/inversions by ear but all of them sounded odd. I need some help figuring this out.

Image and audio attached. The part that needs the chords are highlighted.

chord.mp3

Have you tried, instead of going to the F, staying on the G flat and having the V harmony beneath the note (minus the second degree)? I think it sounds so expressive, especially when followed by F and Eb.

PS: confusing key sig!

You're probably looking for something like this.

However, there are several issues with the score (it should be written in common time, the dynamics are unbalanced between the two instruments, there's no bowing in the violin) and, judging by the style you seem to be going for, there are also problems with the harmony: top and bottom lines are in octaves the whole time (making the thing sound essentially one-dimensional), no proper bass support for the harmony in mm. 4–5 (vii^o is weak in a context like this; it should be vii^o6), the cadential gesture in mm. 11–12 is not supported by a cadential bass (which I've changed, above; having F there gives octaves with the violin btw), and the gesture you've begun in mm. 14–15 makes no 'sense' (14 doesn't outline a harmony, in this style).

ycEWGsuggestedchords.WAV

...Is it okay if i told you i didn't understand much of your vocaulary? haha

Like, from "harmony in mm. 4-5..." onwards didn't make sense for me. I was like "14-15 makes no sense? i didn't even write on staves 14-15... wait... i think he means something else".

Also, what do you mean by "top and bottom lines"?

...Is it okay if i told you i didn't understand much of your vocaulary? haha

Yeah... the struggle. Sometimes I don't understand what people are saying either!

If you can't understand this, you should consider investing in a book and/or lessons.

Oh now it makes sense!

Bars 14-15 really don't have harmony. I changed that part though, i can handle it from here.