Interesting.
Head shape of the first fish appears very round to me, like in the linkei I have. The filaments start growing at rather small size, which your fish seem to have surpassed already.
The slender one looks like a normal young, well fed paro.
My experience with bintan forms is males always have some colour in the fins, even when being shipped. The blue bands disappear, but a brownish band always stays visible. As such, I believe these are either no bintan-like variant or all females.