This is a pretty impressive task guys, I genuinely hope you do it well, I've been looking into making a fully animatronic hulk head for a little while now, I work in animatronics for films, and feel this would be a pretty fun project to work on, finding time is the problem though. Might I add that to do a convincing head of that size you'll need more like 20 servos and several RCs rather than 6 on an arduino. Also Are you guys planning on increasing the size of the guy in the suit? Whilst the leg is looking quite muscular at the moment, it's going to be really stumpy and lost by the time you get to the top of the shoulders, and are you planning on meching the hands? If you put arm extensions in there you will probably find the whole thing to be top heavy.
sorry about all the questions, but as I say this is something I've been looking into making myself for a while now, and it's not a small task in any respect.
sorry about all the questions, but as I say this is something I've been looking into making myself for a while now, and it's not a small task in any respect.