You just opened up a whole can o' worms, buddy.
can opener:
To the novice fan or casual observer, there are a certain set of characteristics a particular character needs in order for them to recognize it...most folks in the 70's would know and be happy with a stormtrooper simply in white armor -sans details, plpus aviator glasses
as time progresses and fanbases grow, familiarity with these eventual iconic characters begin to include the familiar shapes and details, and eventually the proportions of those detilas in relation to one another,
as hardcore fans, we begin to recognize if for example Vader's helmet is shot in reverse (because we know which sides have which details i.e. the silver cheek with the s-curve, the black sensor billet, the belt buckle, the colors and details on the chest box -- all indications of which version of vader and which movie -- same with a stormtrooper -- the fan who will pay 300bucks for this statue in most cases will know at least the basics of what a stormtrooper helmet looks like and would more than likely be able to spot a bad fake -- maybe not a good one.
Personally, if I can glance and be fooled into thinking that it's a photo of a favorite character, or that a genuine costume was used either for reference or as am element in the photo, that's good enough for me...
on the other hand, a nice stylish interpretation (intentional or not)that hits all the details is good too -- i.e. the koto darth maul, the lgendary bust emperor, the gamorrean guard 1/6 (lets face it, it's fatter than the actual character wrong colors- but looks amazingly good)
Bottom, line an expensive depiction of any character with a decent fan-base, should be done better and with more fidelity than most other collectibles (of less coin\)of the same character on the market.
if you were to shrink all pictures of stormtrooper collectibles to look as if they were in the same scale, ideally the most expensive should ideally be among the most faithful, or artistic, or dynamic, or impressive depictions