Industrious, Beaver typically displays his large teeth and trademark flattened tail.
Both of these modern art pieces feel a little bit "theatrical" in their brightly overdone colors (shimmering purple?, really?). Older totems, or totems made in a more traditional style use natural dyes, such as berries, mosses, tree bark and clay. Natural dyes are generally more muted than modern paints, and lack preservatives, consequently, they appear to age over time. (I'm still wondering if these two examples are made from fiberglass, but couldn't get close enough to find out.)
Raven is distinguished from Eagle by its straight beak, whereas Eagle has the tell-tale bird of prey hooked beak. Raven is also known as one who stole the Sun, and is often pictured with a sun disc in its beak, hidden under a wing, or clutched in its claws. Note the high tide marks on the pole.