This issue is a variant of Red Sonja (Dynamite Entertainment, 2005 series) #24 [Stephen Segovia Cover]. There exist further variants.
There is an incentive variant of this cover with the image in black and white; Cover depicts Sonja crouching and driving her sword through a beast's severed head with two sabretooth tigers in the background.
Cover depicts Sonja underwater with a giant whale coming up behind her.
Cover depicts Sonja facing left and swinging a sword with a large tower behind her back.