That looks well thought out and a good balance of speed and accuracy.
Since you're using an IDPA target, you can still work target transitions by using the A zone and head target areas. Maybe with a failure drill (2 body / 1 head) or Paul Howe's version (5 body / 1 head). Also maybe add a reload drill. 1-reload-1 would keep the round count low.
Although it looks like you may done this, check out the
CSAT standards for some inspiration. Most of them require only one target. FWIW, Paul Howe has said that when he practices he starts out shooting all of the standards then whichever ones he fails are what he practices for the day.
Most importantly, each drill you select must have a specific purpose that should cover each shooting fundamental or skill that you value when put together. Off the top of my head, here's how I would tweak your drills:
Drill 1 : From Position 2 drive the pistol out and take on shot. Goal is 1 second. (4 times)
Purpose : Quick sight acquisition, prepping the trigger to fire immediately at full extension since decision to fire has already been made.
Drill 2 : From the Draw take one shot. Goal is 1.5 seconds (5 times)
Purpose : Building efficient draw technique onto first drill.
Drill 3 : From the Draw, fire 2 shots to the body, fire 1 shot to the head. Goal is 2.5 seconds (2 times)
Purpose : Tracking front sight during recoil and target transitions.
Drill 4 : From the Draw, fire 5 shots to the body, fire 1 shot to the head. Goal is 3.5 seconds (2 times)
Purpose : Managing recoil (grip), tracking front sight, varying cadence for different target sizes.
Drill 5 : From the Draw, fire 1 shot, reload, fire 1 shot. Goal is 4.5 seconds (3 times)
Purpose : Efficient reload technique and grip/sight recovery.
Drill 6 : From Draw, fire 3 shots strong hand. Goal is 5 seconds. (2 times)
Purpose : Strong hand trigger control and recoil management.
Drill 7 : From Position 2, fire 3 shots support hand Goal is 3 seconds. (2 times)
Purpose : Support hand trigger control and recoil management.
Drill 8 : From the Draw, fire 5 shots. Goal is 6 seconds. (one time)
Purpose : Sight alignment/picture, trigger control, breathing.