ID: P. flexibilispinus and E. atacamensis ssp. pasacana?

[Glorioustache]

Hello!

I recently acquired 6 new specimens but I have been having a hard time identifying two of them. I have already researched thoroughly and watched thousands of photographs trying to find the proper ID for them, as well as asking around.
The first one is very likely P. flexibilispinus and the other one E. atacamensis ssp. pasacana. Would you agree? Or does anyone thinks they could be any other possible species?

P. flexibilispinus

PSX_20210909_003039.jpg (135.85 KiB) Viewed 616 times

E. atacamensis ssp. pasacana

PSX_20210909_003133.jpg (97.79 KiB) Viewed 616 times

[anttisepp]

Pilosocereus calcisaxicolus
Echinopsis chacoana
IMHO

[Glorioustache]

Thanks a lot Antissep! P. calcisaxicolus seems to be a synonym of P. flexibilispinus. Beautiful species! I had not found yet that other species you mentioned E. rhodotricha ssp. chacoana but looking at photographs of it on the internet it could very well be that one. I think that time will tell, maybe in a year or two of growth. Cheers my friend