Hello!
I think what is holding back your gesture is your dedication to shapes. The page on the middle right that has the two figures on one sheet, to me, has the best gesture of these sketches. These figures are more gestural because the shapes of the muscles and body are not clearly defined. Also, the stokes that you used in these sketches appear longer and mostly unbroken, which helps with the gesture. You might be able to capture gesture in future sketches if you focus on the large shapes first, making your strokes the same way as you did for those figures, and then work into the smaller shapes.
Hope this helps!
