...Palmolive, denatured alcohol and water? It sounded like they were mixed together and not used separately
Normally for cleaning I take Palmolive or another dishwashing liquid with some warm water ( cold water causes cold fingers

)
and clean the toy the wet corner of a dish towel after I dipped it in the palmolive water. In this special case the robot was very dirty.
He was covered with a kind of tar - caused by smoke. When I opened the robot it smells like wood smoke by a fireplace with a
chimney that draws badly. It wasnīt the smell of cigarettes I think. For some hard to remove tar spots I used the denatured alcohol.
Attention: the red feet donīt like it (at this robot). Usually I need about 30 minutes or less for cleaning. In this case it needs threetimes longer.
I used an special golden oil paint. Itīs for artists. Normally you coloured different things like picture frames with your (coloured) fingertips.
I made some good experiences with it. I mixed it with a few splashes of darker golden enamel paint. But you can use the type of colours you like.
Normally I prefer Enamel colours for restorating old toys. Acrylic colours of the same colour that is needed do often have different pigments.
Otherwise Enamel colours often have the same pigments like the vintage toys have. therefore the results with Enamel colours are often better.