Honestly, the videos you posted are useless.
First, you are not pitching, you're simply going through the motions of a wind up.
Second, you need to throw the ball with your true mechanics in the videos for an accurate assessment
Third, it would help if you were throwing from a mound, not absolutely necessary, but we don't pitch from flat ground and it helps to analyze.
I have to ask, Is that a tennis ball you're holding in the videos, cause it looks yellow? :?