I think a robot with close to no chassis somewhat is the highest you can achieve in design in such a robot: The components wrapping around the chip reminds me of nerves in an animal. How cool it would be, if one could make a robot completely consisting of a shaped bundle components and actuators - and nothing else.
And is that an old mobile phone battery that you are using? I have a lot of old phones that I am saving for the day that I can use the batteries - the phone itself is a perfect charger.