Re: Countdown to the Age of Ultron
I was actually a fan John Heck's art in the first couple issues following #16 but after a while it did start to noticeably drop off, maybe around issue #21.
I'm not sure about the twins. I know everyone says they're around Cyclops' age around this time but as they're portrayed in the Avengers they seem older. I haven't really seen an indication of their age either way though, although they should obviously be over the age of 18 with them being able to country hop, live on their own, be on the Avengers, get paid, and drive Lamborghinis.