Descended from the Arvanite[1] Vokos family of Hydra, he was the son of Emmanouil Miaoulis and a grandson of Admiral Andreas Vokos Miaoulis.
In 1885, after a competition, he won a scholarship to continue his studies in Munich under Nicholaos Gysis, Ludwig Löfftz, and Andreas Müller.
He remained in Munich for 16 years, running a painting school, until where he became ill and returned to Athens in 1902.
He participated in relatively few exhibitions: Munich 1898, Paris 1900, Athens at the Parnassos Club at 1901, etc.
Among his more notable prize-winning paintings are the Fisherman (Ιχθυοπώλης), which won the Chicago Award, Epitrapezion (Επιτραπέζιον) which was bought and exhibited at the palace of the Bavarian prince regent Luitpold.