For the 1st vid, the..um.. first 214B seems to be a pretty good start. Though, the following combo afterwards blue-beated because she hit the floor before the 5b hit. Try removing the dash and place faith on the 5b(it looked like it would still reach if you didn’t hit the dash). You can air launch afterwards. At 0:26, if you want to hit a 214x during a bnb combo, use 214a (since it’s the quickest one) with a 22c. If you get the timing right, it can follow into a wall bounce>6c>623c>j236a>j214c. Don’t continue with a distortion drive after a blue beated falling jc. At around 1:57, when 22X hits(can’t tell which one), use 6c>623x>j236a>j214c. Depending on the 22x, the stun will vary to make the previous set-up I mentioned possible. At 2:04, I noticed the combo blue-beated(seemed kinda weird) after 6cc. Cut the extra c in 6cc and jBC>JCC>j236a>j214C or,instead of 6cc, use 2b>2cc>jC>JCC>j236a>j214C.
…This is just from watching about two minutes. Oh boy. I’ll work on some more later.