Apollo with his lyre Picture

page form a Chinese children's book "Apolllo and his lyre"
Pic by 雅尼斯·斯蒂芬德尼斯 no idea what's this name in Greek or English, but must be a Greek artist.

After several days...
It seems that I found who is the artist.
Αδελφών Στεφανίδη

I'm not quite sure, I can only read some names in Greek (such as
Aπολλων)╮(╯_╰)╭ but by the sounds of each alphabet in the surname,I guess this is the name of the artist.
Apollo save my language...( ⊙ o ⊙ )
on this page, might be the basic information of the artist.
This is the book I have but orinal copy was written in Greek, mine is Chinese.
La pythie
Apollo with his lyre
Pan and Artemis
Enchanting Melody