They look really good.
I don't think translating sfx is generally necessary, because we can figure out what they are from context. There are a few times when it can help to clarify what is happening, but that isn't usually the case. The other thing is: a lot readers don't even notice if sfx are translated or not. I don't think you should redraw the sfx unless it is something you enjoy doing. Another option is to leave the original Japanese and put the translation above it in a smaller font, or in the margin. Again, I think your redraws look good, and I am grateful for your work.
Lastly, feel free to completely ignore this message. You should do what you want.