Yes, it's another one of those where we can all stand mystified that the re-drawing was deemed necessary, or even worth the time. No agreement on who did the modifications. The Kirby checklist lists Marie Severin, Nick is thinking Romita/Verpoorten.
And thanks to commenter Greg for mentioning that the original was auctioned a few years ago. Click for a big scan of the original artwork, or visit the original auction, where you can see that this puppy sold for almost $10,000.