It must have a battery, these day minit batteries with lot of amperes are avaiable in dry cell mode. can be hiddenly placed almost any where..
Must have a tail light , indicators, Some reflectors added modestly..
Cone Air Filter
Cone Breather Filter [Coloured even better look will be awesome]
Handle is low or the fuel tank is way high which gives a feel of Camel Hump on handle area.
rear foot rest are not needed and look ugly
Bike it too! high on heels... i think it should be 2~3' low ... [compare with CRF or XL they are way to low .. even 400cc are not that high tail..]