Queen Henrietta Maria liked amateur theatricals and this shows the deign for a theatrical dress.
The Wikipedia article for Inigo Jones is here.
It looks like Inigo Jones was reaching a few decades back for inspiration in this theatrical dress.
Keywords: 1632, Jones - Inigo, British, Stuart family, Bourbon family, Queen, Queen Henrietta Maria, curly coiffure, jeweled feathered headdress, square neckline, modesty piece, ruff, draped necklace, earrings, French sleeves, theatrical dress