Very nice, looks very comfortable, and inviting
Yes, limited memory is a little bit of a challenge, but maybe you're just going to have to optimise as you go.
Looking very nice stuff so far. I can imagine wires coming out of his midbrain area (where you have already put in cavities, so I suspect it's meant too).
This could be extremely cool, if you don't melt your PC doing it!
The only crit I would give is that you could maybe resolve the chair it's self a little more, perhaps through some sketching, as that's the onus of the competition: While comfort's probably irrelevant for a plugged in drone, some of the details could be intriguing.. Perhaps have a spinal tap feed system/ neural interface down the spine, if it serves as a full life support system as well as controll interface? Also it strikes me that maybe the 'user' would be inside some sort of protective canopy, simply because he's utterly defenceless & exposed to both physical and biological threats: Perhaps it could be part of the design?