I liked the exposition of your fugue. The subject is strong and easy to recognize. Would you like to explain what 'spacing' means in this case? Does it mean that some of the voices are too separated from each other (second to last bar, check 'C' and 'A')? As far as I know, the limit is an octave + Major third (between adjacent voices), but in some cases a wider interval is permited (in a climax passage, for example). Anyway, it sounds fine for me. The only thing I noticed, is that you have 'pseudo' parallel octaves. Bar 4, check answer and countersubject. Also in the next bar, check countersubject (bass) and soprano. Maybe these are permitted because there is a third voice, that fills the gap? But that's all, I mean that it sounds good, and that is what matters the most. So some of your music education came from school and junior college? That's cool. Here, music education at school is very slow; for instance, they taught me the accidentals in the last year of school!!! But in some way, it was good...because I could sleep without missing anything. I hope that we will improve the music education someday, to reach a good level. We are last in this aspect.