Finishing the Omoplata can be challenging sometimes, specially if your opponent has a good posture, not letting you pin his shoulder on the mat.
But, the good thing about the Omoplata is that you have many options from that control – sweeps, and transitions to different submissions.
In the video below I explain how to sweep your opponent executing a Backward Roll when he has a solid posture, from there we are gonna work many submissions, including wristlock, armbar, triangle, and rolling omoplatas.