That doesn't look like any of his type of puppets, though... YR is also known to use Wood/Water as his primaries (which, yes, contradicts him using AE). It's certainly possible he
sold a puppet to Sun Liling back then (like he probably sold a stealth charm to Chu Song) but this puppet seems different enough to probably not be him. As for puppet use, we know of Li Suyin at least
![:V :V :V](/styles/sv_smiles/xenforo/emot-v.gif)
. They just aren't very rare, though they tend to have specific styles, and this doesn't fit his.
Certainly, we can go "Well, conservation of detail means it should be him", but Yrsillar hasn't really worked like that so far, and Fu Xiang hasn't told us who did it... and probably would have told us if he had found out it was Yan Renshu.
My guess is he found who did it, then blackmailed that person with "I will tell Ling Qi you did it".