One illustration style that has been seen a lot lately is the sweet Modern Vintage illustration. Mixing vintage poster elements with modern techniques, you get a beautiful result: a modern, stylish illustration that reminds us a lot of those and posters.
Disney's Frozen and David O. Russell's American Hustle have been given the Mondo poster treatment! Frozen comes from Tom Whalen and American Hustle was created by Matt Taylor. They are both fantastic designs, and I hope you like them.