Artcyclopedia

Have you run out of Old Master drawings and paintings to sketch? Check out the Artcyclopedia - its has an amazing amount of art perfect for sketching, study, and inspiration.

Michelangelo Drawings

Studying and copying the drawings of Michelangelo is great practice. :)

via The Web Gallery of Art

Raphael Drawings

Studying and copying drawings from Raphael is great practice. :)

via The Web Gallery of Art

Rubens Portraits

Rubens' linework is so lively, copying his drawings is great practice. ;)
via