Each of these original watercolors is one-of-a-kind, painted with watercolors (and sometimes added texture) on Yupo paper.
These small paintings are 5.5 x7 or 6 x 9, and are not matted, so you can do what you want. (They are each hinged on to foam core board for protection, but that is easily removed.)
Each watercolor has at least two coats of UV varnish to inhibit fading.
Of course, the originals do not have that OngaArt watermark.
I fulfill these myself from my studio in Wisconsin and they have a $3.00 shipping price.