Initially I thought that No 2 and 3 were the same species. Their markings appear to be quite similar other than the fact that No 2 is rather worn out. I agree that it was a female, as I managed to take a look at the upperside and it was as you've mentioned. I didn't manage to see what No 3's upperside looked like though.
It is stated that in P. hewitsoni male the HW outer band ( chevrons ) is dislocated completely at vein 4. Most of them significantly so.
No 3's HW band is not quite so, resembling no. 2. P. hewitsoni is quite rare in P. Malaysia probably less so in Langkawi. https://species.wikimedia.org/wiki/P...iMFUpUnAC1.jpg