I'm not really a big comic book guy myself (I know that was more directed to Ender, I'm just butting in). Your excellent Goodwin/Williamson preservation site is the exception. That's a bookmarked, daily read. Love those - the stories, the art, the EU of it all. Really nice.
That said; While I most likely won't ever buy the comic book series of Splinter, you're right on about those covers. They are fantastic. I have some fairly high-res scans already, but I still occasionally sit and do a search just to see if anything new pops up.