Here are some examples of digital/computer CARD creations w/ mix-media painting apps and photo software.
The above image "Bird Rider" is one of my first excursions on the computer as a painting-drawing tool.
( some prints are available )
archival inks on premium photo paper mounted on acid free quality white card stock w/ envelope
images: 4" x 6" to fit 5"x7" and large to fit 5.5" x 8.5"
Iris and company
Peace and Love