Guariglia's Leo is gouache and watercolor on paper. It has something of a collage property to it. You can seem more of her work at alexaguariglia.com.
Miserendino's work uses acrylic and clay pigments. The gallery website says this piece is just acrylic on canvas, however. The work is deceptive in it's simplicity. Complexity coming not from color but relief. The work is just this side of wall scupture. Find out more about Miserendino at anthonyartist.com.