Given his *official* height in the 616 MU is 6'6", any PF should stand 19.5" from head to toe. That number will be even higher with the top of the helmet wings included.
Having his knees bent like this is going to allow SS to really fudge his scale if they want (which they probably do as it will only increase their margin).
It looks like if he were to straighten one of his legs, he would be about the same distance off the ground as the original PF was (which looks to be about 3-4"...but I could be guessing wrong on that).
With his right arm not extended straight up, the statue would lose a couple inches compared to the first PF- that is, if both versions of the figure share the same scale.
The original PF is 30" tall, so this should be at least 27" to 28" IF they aren't fudging the scale.
And I know how upset people here get when these characters aren't represented in their correct scale.