Marvel's Black Widow (UD, 2021) signature page

This was a weekly set sold only on ePack. The sketches were achievements, which means they were only available via ePack. I guess that means the checklist with only eight artists is probably accurate.

Artist name Reverse Front
Adam Angel
Brian Kong ,  
Jerry Bennett  
Johnny Segura  
Jucylande Junior
Rich Hennemann  
Sherwin Santiago
Tim Shinn