The parts used for the butt don't really fit much. They're large and smooth silver parts in the middle of a fairly large amount of more detailed pieces.
I understand you like to give many of your female MOCs a very clearly defined butt, but the parts used to execute that concept really don't work here. I've nothing against the concept of defined curves on a female MOC, but I just feel like this was more thrown on, as the parts lack almost any consistency with the pieces adjacent to them.
While I do very much enjoy the color scheme, I feel like it could be better distributed, particularly across the legs. There is little blue or silver visible from the front view of the legs, and it almost looks more like pants or something of the like than armor. The color distribution looks fine from the back, just somewhat bland from the front. I also feel like the purple used on the gun and the light transparent blue on the left forearm would look really nice on the rest of the build.
The gun is interesting. It has the silhouette of a gun, but some of the details such as the heart-shaped piece look a little odd. If anything, I think some lightning bolt pieces from the new Nexo Knights sets would look wonderful to carry over the electricity aesthetic the colors heavily imply.
The build of the MOC looks pretty good overall, I just feel that it suffers from some odd color distribution along with some parts whose textures look fairly out of place given the rest of the MOC.