These illustrations/drawings are by Roby Dwi Antono.
Website: http://lobilob.blogspot.nl/
He was born in Ambarawa, Semarang and lives and works as an artist, illustrator and graphic designer in Yogyakarta.
His inspirations are Mark Ryden and Marion Peck. He also makes paintings, so go and check it!
ILLUSTRATION AGE 
Thoughts?