Eric Joisel is a French artist who makes human figures by wet folding. Each of the models below was folded from a single sheet of paper, without glue!

Barbarians

Musicians

Check out galleries by Eric Joisel to see more of his creations. A nice (YouTube) Brief Documentary on Eric Joisel (3:46) showcasing his life and artwork.

Technique: Eric has written an article: Creating the Barbarian Series.

Peter Callesen from Denmark carves out models from single sheets of A-4 paper:

Roots of Heaven

White Hand

Holding Onto Myself

Peter maintains four galleries: * A4 Papercut * Large Scale A4 Papercut * Framed A4 Papercut * Framed Large Scale A4 Papercut

Brian Chan from USA folds origami insects from single sheets of paper without glue. Click on any insect to visit his gallery:

Dobsonfly

Stag Beetle

Hissing Roach

Origami insect folding was popularized by Robert Lang, an origami master. Check out his gallery: Robert Lang — Insects. He also folds birds, mammals, plants, reptiles and so on.

Meenakshi Mukerji is an artist of Indian origin in USA who assembles intricate polyhedral models from multiple pieces of paper without glue. Click on any model to visit her gallery:

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Periwinkle

Waterlily

Modular origami as an art form was popularized through books in 1980s by Tomoko Fuse from Japan. Today, it is pursued by dozens of artists worldwide, with over ten good books on the subject. Ingeborg de Wolff has assembled hundreds of models from all these books (check out his galleries).

Technique: Meenakshi Mukerji has written a book: Marvelous Modular Origami (92 pages, 2007). Alternately, you may start with models made out of Sonobe units, as described in section "Instructions and Diagrams" at Modular Origami.

Vincent Floderer is a French artist who makes mushrooms and coral reef models by crumpling and wet folding of large single sheets of paper. Click on any of the pictures to visit his gallery:

Volcan

Corail Bleu

Clitocybe

Technique: Vincent has a video: (YouTube) How To Fold A Mushroom (4:10).

Eric Gjerde makes tessellations from single sheets of paper. Check out his Gallery at Flickr:

Another prolific artist is Par Melisande. You may also check out Andra Russo's (Flickr) tessellations gallery for some fantastic models.

Gallery of models by Goran Konjevod.

Technique: Eric has made available Diagrams for Tessellations for free (the diagrams are not in individual posts; they are listed in the right-most column of the page). Eric has also written a book: Origami Tessellations: Awe-Inspiring Geometric Designs (128 pages, 2008).

Ingrid Siliakus first discovered paper architecture from Prof. Masahiro Chatani (architect and professor in Japan) who popularized this art form through a series of books in 1980s and 1990s. Intrid has taken paper architecture to new heights with intricate designs:

Another famous artist in the same genre is Marivi Garrido.

Technique: Check out Books by Masahiro Chatani to get started with "Pop-up Origami" or "Origami Architecture".