Sorry to hear about Jen's head. My Jen's head pivots better than Kira, but Kira's head won't stay up (which is OK, since she looks strange from a low angle anyhow).
By the way, I don't really think the molding had that much to do with why I think the gelflings look "off." Not for me. For Kira, she has no neck or shoulders -- it's like a head on an articulated Barbie doll. They used the hair and (lovely) clothing to compensate for mis-matched bodies on both dolls. They did a better job with Jen, who is beefed up by the well-designed clothing. The facial problems have as much to do with the painting as sculpt shape -- I'd say more so.
Either way, it's a rather ambitious release for Sideshow, and I'm pleased to own them. I even bought a back-up set so I can fuss with my dolls to my heart's content -- will probably even give Kira some much-needed wings. Sideshow had said earlier that the Mystic and Skeksis releases were hinged upon how well the Gelflings sold. Strange they announced this the day after the figures shipped.
BTW: With a little bit of hair gel, you can really use the Gelfling hair to cover up any design shortcomings. Not to mention the fact the dolls look deceivingly good from certain angles. Odd that the Sideshow promo pics didn't take full advantage of that. I'm still working on Jen to make him look less like Steve Perry (the packing made his bangs stand straight up in the air -- it's an uphill battle).
http://www.williamgirdler.com/kira/kira.html