There is always room to improve one's CV.
That said, if you passed screening by Bain and BCG, you probably have a good one! I haven't heard of much hiring by OW at the moment.
If you like, you can send it through to me via direct message. I'll be happy to have a quick look (free) and quickly tell you if anything needs to be changed.
That said, in general, there are often experiences we can add/remove/reword to make our resume even better.