Mu represents a breakthrough in artificial life - unlike previous models, Mu is capable of emotion, complex thought and is regarded as sentient.

What sets her apart from other droids and robots on a hardware level is two factors - a complex neuro-core, and a particularly rare power crystal to run it.

The crystal that runs Mu is believed to be directly tethered to the magic plane, unlike the typical crystal which contains a finite amount of magic energy.

Also unlike most robots, Mu is not designed with combat or menial labor in mind, but her unique power crystal gives her access to the formidable ability to shoot blasts of lightning at aggressors.

Still unsure how I should do my linework, but I'm fairly happy with how this came out.

Not full decided on her colours, patterning or design though. I feel like there's still room for improvement.