Here you go, PDF for the original core box Captain Marvel from Marvel Crisis Protocol.
Painting something that isn't covered in details is really refreshing. If you're aiming to practice light and shadow placement I highly recommend working on something like this.
Anyway, if you need clarification about anything in painting process that isn't covered by the guide, feel free to drop a question in here or on Discord.
Thanks for your support as always!
~Kav