My first Impressions:
I think you can probably push the design more actually. Looking at some of the PsyOps designs, I think your design could use more military stuff such as straps and other armor bits.
In terms of Star Guardian inspiration, I'm not really seeing it. The boots also feel misplaced as well in contrast with the rest of the design. Currently the boots feel like a piece of an separate armor set.
My feedback would be to choose one direction and go that way per variant.
1 version push the PsyOps features
2nd version push more of the Star Guardian features(more magical girl)
3rd being the hardest is trying to combine both elements to get something new. These 2 skin types are so different so trying to represent both in one design will be challenging but I think you can do it.
I currently like the different bits of the design. The hair and face are really cool. Your lines aren't to sketchy and are pretty clean. I do like the boots design and if you want, try making a full armor set with similar design elements. The boots really stand out as really cool to me.
Hope this helps and wasn't to harsh or anything. Best of luck.