Finally managed to complete painting some of the toy cars, using the real classic cars as reference. Nevertheless, did bear in mind that they are afterall toy cars, so reserved some "kitsch-ness". Besides I do not want to paint in such a way that the material used no longer look like its original stage, that is make it look like metal. The only disadvantage leaving the raw-ness of the cardboard visible will be that the cars look kinda unfinished, unpolished or even rough. But I think it's ok as I would not want to disguise the use of these cardboard, and do enjoy that roughness, unpolished feel of these cardboard.
