I did the same process with a HiT Toy Company Thomas. After cleaning him (he was very dirty) I started the same process of painting eyes, with the difference I added a nail polish finish after painting. The image of Thomas with the classic red running board is too big so I can't upload it, sorry!
Now Thomas looks like it's from prototype Plarail 2003 Thomas!!
Now Thomas looks like it's from prototype Plarail 2003 Thomas!!