Here is a commissioned painting I did of a sweet doggy. I did it very loose and colorful. I know that it looks a little like watercolor but, it is done in acrylic. I did do most of the dog in loose washes and glazes of transparent acrylic paint as though it were watercolor.
reference photo that was sent to me.
This is the sketch that I came up with. I often do a thumbnail sketch in Photoshop because it allows me to make quick changes to see how different things look. and it is also very easy to email the image to the client for approval.