Blade is right, video would help A LOT!!!
In general though, IF you are mastering the rotational draw, you are learning to get your bones lined up and your string elbow is a RESULT of proper alignment, NOT a "target" to be established -- it just happens.
When you draw, you should be thinking about getting to your bone alignment position ( how you get there is not really important, as long as you get there). Once there with well relaxed string hand/wrist/ forearm AND allowing the force draw line (vector) of the bow to align your forearm and hand, your string elbow should be in the right place.
Arne