This is one artist who really thinks outside the box - by creating these stunning artworks out of nothing more than cardboard.
Mark Langan, 50, spends hours meticulously cutting, folding and gluing corrugated cardboard together to produce some of the world's most eco-friendly artworks.
From recreating masterpieces like Edvard Munch's the Scream, to crafting a huge recycle logo, his works are made up of around 2,000 individually cut pieces of cardboard box.
Mark, from Cleveland, Ohio, spends up to 120 hours toiling on each individual piece - and has created nearly 200 artworks.
He said: "I started working with corrugated cardboard in 2004, while tearing down boxes for trash one day.
"I happened to notice the wavy medium sandwiched between the paper layers, and I thought at the time it might make for a great visual in an art project.
"I asked a neighbour of mine who recently moved out of our area selling their home to save their boxes for me once he had them emptied out, and as soon as I got them, I started to experiment with them cutting and laminating them together with non-toxic white glue.
"From the moment I completed the first piece, I was hooked.
"On an average project, I'll put in anywhere from 100 to 120 hours on project measuring 2 and-a-half foot squared.
"I create my own wood frames, a refined line drawing of the conception is transferred over using again a low tech means with graphite paper.
"Most artworks will have somewhere in the neighbourhood of 1,500 to 2,000 individually hand cut pieces that are placed one at a time.
"Once I've got started on a project, I find it difficult to stop until it's completed.
"I fondly remember two years ago working on the artwork feverishly on New Year's Eve and running over to a friend's home at midnight quickly to kiss my spouse, toasting in the New year, and to return home shortly thereafter to work on into the night.
"Although my wife is supportive, some days I think she's going to kill me if I bring another box in the home.
"I am very meticulous about my work and hate to use the expressions of garbage art or other coinage. My work is very low tech and actually eco-friendly, all being done by hand, piece by piece.
"I use a non-toxic white glue as an adhesive and my tools very simple and straightforward being that of a cutting mat and steel rail, an OLFA brand snap razor knife and a measured rule when applicable.
"It requires skill, lots of planning, math of course but most importantly a ton of patience.
"If it would not be so bold to hold myself in such high regards, it would be a dream of mine comparatively speaking, as Dali is known to Surrealism I would welcome Mark Langan being known for boxes and recycling."
Source: Heather Skillen, Caters