@RStrauss
Clear structure, the most fugal of those of yours I have heard so far, material certainly better dosed than previously; furthermore, I recognize RStrauss, so this work has its merits.
I will make a few small reflections in case they might be useful:
In the subject coda, at measure 5 the last note is a D#; it was just heard halfway through the measure and is a bit weak, perhaps it is worth considering a small modification; even a "B" would not be bad.
Systematically, the # is missing from the F in the answer, is this intentional?
The pedal part at 29, perhaps it wouldn't have been bad to consider starting it with a more significant part; when the subject arrives at 35, it enunciates it without much breathing room and it is a pity that it is only the coda of that moment.
The arrival of the dominant pedal at 63 can be improved; on one hand, at 63 it suggests more a German sixth than a diminished chord, given the resolution to V46; however, the most relevant thing is the fact that there is a chromaticism that finds its ideal stopping point precisely in the dominant pedal; it's a pity those arpeggios were inserted at the end of the run.
In itself, there is nothing wrong with it, but that line has what it takes to work better...
Evaluating what comes after (harmonically), at 68 I would not have deprived myself of the opportunity to strike a nice G# in the alto. Aside from being more harmonically effective, above all the melodic aspect would benefit, since it is then the Subject
Can you clarify the harmony at measure 83?
That said, I enjoyed listening to your work; you seem to have definitely improved on the subject of the fugue.