The big problems I see are that you have no indication of a ground plane, and your overlapping is poor, so there's no real sense of perspective or which forms are in front of which. It's hard to tell that the hand is reaching forward well in front of the foot. You've also made the shin more vertical than in the ref, which pushes the foot too far forward.
Really nail the overlaps, especially on the forward arm. Get as many as you can to show it coming forward. And put in some indication of a ground plane, it shouldn't take much. The fingers should fall in a nice flat ellipse on the ground.
And maybe rein in the pink. I cut it back and used it to separate the figure from the background.

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