I paint on canvas usually with acrylics and sand. I use thick canvas, stretch my own paintings, paint the sides in a wrap-around/continuous manner, and choose a protective finish (Minwax Polycrylic)...
This creature evolved into a sea turtle. The legs and head were imprinted from the initial stain. I consciously created the rest. This Spirit Animal has the hope of the title. The painting is 107x137x5cm (42"x54"x2"). The sides are continously painted and there is a glossy finishing coat.