Small bit of advice for impact frames:
1: Impact frames are all about contrast, so on an all white background, you would would wanna turn the BG black and the Lines white, which you did splendidly.
2: The actual impact; before drawing your impact frame you wanna scope out your point of impact (where is the most force/power going), then, you wanna draw your characters and objects and such, but instead of using normal lines, you wanna use multiple, sharp lines, all facing towards your point of impact.
If you REALLY want to improve on impact frames, watch this video, its genuinely very helpful.
https://www.youtube.com/watch?app=desktop&v=6UaUi5fBmJc
