Most of the stuff I noticed:
1. Too much random ice blades both on the ground and in the air. You keep standing across the screen after D DP and tossing them out for some reason. And when you do it in the air you get punished if Noel is close enough.
2. In the second video you kept randomly doing 2D after hitting with 5B and 5C and left yourself wide open.
3. You keep crouching and getting crossed over by her 2D I think?
4. Capitalize with the meter more, aerial ice swords, etc. Keep the pressure up and don't let her keep punishing whiffed moves.
5. Similar to above, in the first video you randomly keep jumping backward during pressure strings if it seemed like she was gonna keep blocking.
6. Barrier block in air more
As for combos, it looked like you landed j.B on her standing a lot or 5B. I think you should definitely utilize the 5B, 5C, jB, jC, jD, etc combo on her. The timing is different than others but it would probably do better damage in the long run.
And lastly, just my personal opinion, but I wouldn't use the ice car, rapid cancel, jB, etc combo too much. Doesn't do significant damage and the 50% meter can be better spent on something else.
Good C DP punishes during drive spam and capitalizing on her slower moves.