From publisher blurb:
This Bulletproof Blues Character Pack contains eight pieces of high resolution, royalty-free character artwork by Dan Houser, along with the characters' Bulletproof Blues character sheets in PDF and Bulletproof Blues Character Sheet Helper format. Eight characters are included:
The image sizes vary, but are generally around 3000 pixels x 4000 pixels. The "preview" above contains all eight images, but they are much lower resolution and are highly compressed JPEGs.