Hi Awesom_o,
Thanks for the comment on the unstable tempo.
Actually in the beginning where it is marked "dolce" I prefer a slow tempo.
Then, comes a part marked by "espressivo". I choose to accelerate there until the main "dolce" theme reappears.
There are these two tempi that I play with along the piece.
At the ending, on the last page I selected a very slow tempo. Something that feels very tired and fades away.
On top of that, there are rubatos along the piece.
So yes, the tempo is not stable.
Part of this instability is a choice I made, and part of it is probably due to me being only an amateur yet.

In another piece by Bach I uploaded recently I tried to keep a steady tempo from beginning to end. (Maybe I did add some "resting" moments also there, but mostly the tempo was supposed to be stable). Nobody commented on that piece so, I don't know whether people liked my interpretation.
Anyway, thanks for commenting.
Tsachi