Q: I just wrote a chord sequence to try to practice improvising over, and it's: Fmaj7/G - Gmaj7/A - Fadd9/Bb - Bm7add4 - B9. Does this sound like a good sequence to improv over to you?
A: that could sound 1000 different ways. One of the most ambiguous things about the way you wrote it is, you didn't specify the timing. you wrote 5 chords, so, am i to assume it is a 5 bar sequence? probably not, it's more likely that you are putting 2 of those chords in the same bar, but without a more specific explanation there are literally trillions of unknowns, about the way your exercise actually sounds