I think the current is fine, especially with the recent update giving back her braid and giving her a more casual look.My not so popular opinion is that Lumi's version 1 model was fiiiine. It didn't need a revamp.
But I do agree, I miss her V1 model and think I prefer it to the newer one. It wasn't perfect, but it was charming in its own way and had a fun, derpy look to it at times. One of the last shorts she did before the new model really showcased how good the movement, especially in the eyes were: