Gorgeous piece, Theodoros. Can you please tell me what brand(s) of metallics you used? Thanks.
Thank you Lissorles !
In this case, to paint the metallic parts, I followed these stages :
1. a dark brown enamel basecoat
2. gold printer's ink all over the base coat
3. dense oil black shadows to the deepest point, diluted indigo blue to the "border" of black
4. general shadowing on the lower parts using a reddish brown oil colour
5. oil pure gold, a bright one, to highlight the upper surfaces (two and more coats)
6. when everything was dried up, I painted all the metallic surface using a thin layer of "reddish" gold.
7. I covered all the metallic surface with a thin coat of satin varnish.
[Soon, I will upload the pictures of the exact colours I have used.]