Here we go again, another intriguing young (I presume) illustrator who provides little background information on his own site, so I’ve dug around for what I could find.
Altmann graduated from the Illustration department of the School of Visual Arts in New York. He lists his favorite comics artists as Winsor McCay, Geof Darrow and Frezzato, and his favorite non-comics artists as Rembrandt, Klimpt, Dewing, Mucha, Nerdrum and Dean Cornwell.
He works in oil for his illustrations, but likes to work in digitally for some pieces, and has a gallery on the CGSociety site. His clients include Wizards of the Coast, UpperDeck Entertainment and Green Ronin Publishing.