Good work so far. I too am veering away from acrylic back to oils (over acrylic). I've found Milan's videos interesting so am keen to see how you get on with his techniques.
I used ABT Matt Effect Thinner to clean my brush. The red and blue oils no longer have a satin/gloss finish. The oils weren’t thinned, just the residual thinner in the brush after cleaning and wiping on paper towel.
For the lacing I’m thinking oils with gold pigment mixed in over a base of metallic acrylics. I’ll have a dry run on something first and see how it looks.