The shield should line up with the lightsabers.
Yeah, I think keeping a subtle (but still noticeable) version of the shield might kind of handwave jokes/questions about why didn’t Mace Windu grab two lightsabers and downright disintegrate Palpatine’s face with the redirected lightning XD
Having Rey glow with a slight, ghost-y blue outline also conveys the idea that the Force spirits help her.