One-of-a-kind Fantastic Four #600 sketch covers by Dan Jurgens, George Pérez, Mike Perkins, and a dazzling Galactus by Dustin Weaver lead off this week’s installments of Hero Initiative’s fundraising efforts spawned from their Fantastic Four #600 Project.

In each case, the artist in question received a blank cover variant edition of Fantastic Four #600 and created their own interpretation of Marvel’s first family. Ranging from ornate works of art to simple, spirited sketches, the comics are then auctioned off to raise money for the 501 (c)(3) charity.

Creators such as Sam Kieth, Phil Hester, Ken Lashley, Joyce Chin, Chris Moreno, and Chris Ivy are among the other featured artists this week.