Mike Holmes is a Nova Scotia-based illustrator. He is the illustrator of the graphic novel adaptations of The Dragonet Prophecy, The Lost Heir, The Hidden Kingdom, and The Dark Secret. He drew the lineart that was then colored by Maarta Laiho. He has also worked on other graphic novel series, such as Secret Coders.
You can visit his website here and his Twitter account here.
Gallery
The Dragonet Prophecy
The Lost Heir (Graphic Novel)
The Hidden Kingdom (Graphic Novel)
The Dark Secret (Graphic Novel)