Rupert Smissen’s drawings have an interesting aspect to them, i.e. he incorporates tree branches and leaves to form silhouettes of peoples’ heads and bodies. And these images have a visual illusion type of effect.
Artwork © Rupert Smissen Link via Little White Lies
Dissected Splendor: Nunzio Paci’s Visionary Anatomy Paintings 
Nude Pencil Art and More 
Drawings: Is that M.A.D. Cat? 
Incredible Anamorphic Art 
Sparkly Creatures 
It is all in the Mind 
Patterned Animals 
Ballpoint Madness 
Pick My Brain 
Martyrs and Saints 
Artist Spends Hundreds of Hours Drawing a Carpet 
Deer in the Forest (a Leaf Cutout) 
