TULIPS - Watercolor Collage - 11x15

I have been playing around with combining watercolor and collage. Here I started with watercolor and then added layers of tissue paper - some with designs and some I had painted - and rice papers. Then I refined the design with more painting and then collaged more rice papers with texured designs. A different look and ...it stretched me creatively - now trying to decide if I should seal it with a matte finish or a gloss?