I think it's looking good. I would probably try rolling the gauze in a 6" or 12" length Whatever longer length is convenient. Then clamp the ends in some sort of c shaped frame. Maybe a coping saw or hacksaw frame in a vice? Then tie a whole bunch of threads around it. Then cut the individual sections apart after the thread is tied. Hopefully that makes sense. Don't know how well that would work, but I expect it would be easier to work with a larger piece that is being held mechanically while tying the knots.
I think your doing great as is
. I'm just always trying to come up with an quicker easier way to do things.