well to be honest.. i don't think your idea will work
-there's only one season, many portraits are gonna be missing,
-many of those that are already presented, are way different than their actual book-descriptions
-event pics are gonna be a real bitz, lets say everything about battles and sieges..general dies, enemy general dies, settlement taken, building lost etc etc..
the tv show isn't displaying anything that relative (maybe they'll do blackwater, but who knows in what scale..)
and you also "have" to have some variaty regarding the different cultures, for whatever kind of event pic..how are you ever gonna find anything dorne related ? or are you gonna use pics from other films ?
you're just gonna end up with a miss matched motley bunch of pics, i'm afraid...
your concept is beautiful but also seriously flawed..
the TA had 3 films of epic proportions with another 2 coming up and not as much detailed characters appearances (tolkien's work on the war of the ring, was mostly about the middle-earth races and 10-15 characters, while martin's is about around 100 fully fleshed out, main, secondary and even tertiary characters..tough deal
)
maybe you should reform your concept and concentrate on just
-loading and menu screens
(you already have some great stuff, as i can see from the previews, maybe you should also include the variou spromotional pics with the various characters on the iron throne or the various banners and why not some fan art too..like certain show-pics , processed with photoshop etc...i'll take a look in my drive and see what i have to send you)
-quotes