I wrote the Hero Arts card maker last night and heard back this morning..."Jan, good question. I used Strathmore watercolor paper 140lbs And I bought it at Michaels." Mariana Grigsby
Well, I am surprised that she achieved that result with Strathmore paper...and expect Sadie will be too since we see a dimpled type texture on the paper. Now I am wondering if it is due to the sheerness of the watercolor wash. When I watercolor it is often hard to see the texture. I have heard the texture is to maximize the light reflection for enhancement of the colors. Heidi, when you saw other cards with similiar texture did they also have extremely light pigmented washes? Lighting for photos may also be a major factor.
PS...I use the contact e-mail available on most blogs and almost always get prompt response.