the first scale I would do 4-2-1-3-2-1-3-2-1, the problem is that you have to go over the thumb twice, but it's manageable with good practice, even at high speeds. The problem I see with the fingering that's written on your score is the small stretch between the 5 and 4 on that first third, which can result in uncontrolled rhythm, for me it's harder to achieve control on that than passing over the thumb twice.
2nd scale looks good for me, I wouldn't change the fingering.
3rd one, I'd do the same as in the first one except on the last 4 16ths which I would leave the same fingering with 3 on Bb and 1 on the D.