This sounds really complete. Nice work. 16th note runs in mm. 12, 14 I was little put off by, since they relate very little to what we've seen (even though I do see the elaboration of a simple central turnaround), and the ending with its prolongation of the i chord was, I feel, a bit unnecessary, but the parallel 5ths at m. 11 and the cadence before the repeat were nice to hear.