Erick Hodson does an amazing job with the Star Wars Sketch Card of an AT-AT Walker. Such detail and great art work that you have a chance to own!
I love Dan Borgonos Sketch Card work. This Captain America is a perfect example of that, and a reasonable starting point for collecting! All hand drawn.
Gorgeous Sketch card of Shadowcat. She is part of the X-men. All hand drawn and colored. One of a kind. Size of a baseball card.
I try to find cards that are stunning, spectacular, and inspire me to want to share, these are often cards being sold by someone other than the original artist, but it is the Artist I am trying to “showcase” to show you the talent they have, and to hope that you might want to seek them out, to maybe do a commission, or get art from them directly if they have their own site.