I considered your 'corporation' (
) in looking at the photo. I think that the reduced '<' may be related to your 'bobbing' If the '<' were deeper (torso angles more away from the target) your head would be closer to the height it'd be at when your trail leg is angled more towards the target at impact.
Consider Moe for a different comparison:
While your hands are opposite your trail leg like Tiger's, notice that his hips are more rotated and that means his hands are closer to the target. Without changing your hip rotation dynamis this would require you trail elbow to be further forward (sound familiar). Look at Moe for another example of hand position with less hip rotation:
The knee being outside of the edge of your lead foot is part of a 'swing style' issue. Most modern pros use a swing where the lead leg is 'snapped' straight just prior to impact. Tour pros from the 50s more often kept a flex in their lead leg. From an energy transfer perspective the imporant thing is that your leg stops moveing just prior to impact. From a healthy knee perspective I think it's better to keep the flex. From a shot consistency perspective I definitely think it's better to keep the flex as well as 'piability' in the angle so that you feel your lead foot is 'anchored'. Notice that the targetside edge of Moe's lead knee is also outside the targetside edge of his lead foot however Moe's hips are further back with a very deep '<'.