I think it’s indeed the carpenteri, body looks exactly like the Live aquaria female. The dorsal fin is slightly different where he/she is starting to get the 2 or 3 long fin in the mature/male picture.At a quick glance you’d say a species from the Paracheilinus filamentosus complex but I would honestly say you have probably gotten a young female Paracheilinus carpenteri - I’ll try find a photo of my Carpenteri when he was female.