I have the 1/6 Sideshow Flash and my biggest complaint was that his arms are too skinny.
I would prefer Barry to be a bit more muscular than too skinny but I understand people liking the Golden Age thin look.
It reminds me of this picture:
I am very happy there is no chin strap and no extra lines on the suit.
They even used the old style belt.
I'll be ordering this as soon as it becomes available.