The brushstrokes in acrylic (which has the consistency of toothpaste, though you can thin it with water) are much more textural than watercolor. The main difference from watercolor is that with acrylics (or oils) you can paint light colors on top of dark, and add white even at the end, which makes it much more forgiving. In watercolor, white is the white of the paper, and you can’t paint, for instance, yellow on top of dark blue, because the medium is transparent.
