Id say you did fine, but since you wanted some feedback, I will share what Ive learned...
Hold the gun tighter, especially your weak hand and where you shot one handed
Have your grip formed and gun up, pointing toward the target 1 1/2 steps before you arrive where you are posting up (youll be on target much quicker).
Learn to reload with the gun up about even with your nose. Itll be faster because your eyes can track from target to gun quicker plus it adds increases situational and target awareness.
Doing these these will shave .2-.3 seconds off every reload and every place you posted up. Thats 3-4 seconds on the stages you posted and you didnt "shoot faster" (you moved through the stage faster).
Hope this helped. The guy that taught it to me is a GM
