Top Echinopsis subdenudata, second a form of E. ancistrophora? Nice plants!

I dont really know for the first one. On garden org they suggest some kind of melocactus....which does hold some merit with m.curvispinus sub species(but im not fully convinced). I dont think its a subdenudata, on account of neither the spines or shape matches. I do consider a hybrid between it and something else....

For the second one it is possible......