I accidentally used a gloss white acrylic instead of my normal matte acrylic (which was used to mix every color in the piece), so the end product ended up being really shiny from some angles. At first when I realized I had used the wrong paint, I was discouraged. But I had already painted a rather large section with a color I liked, so I continued to use the gloss white with the rest of the piece. In the end, I liked that the gloss white was less opaque and it was a happy accident that I grabbed the wrong paint.