Joe Karlosi wrote:
Besides the fact that it's a lovely leg to behold ( ) I think this was a brilliant moment. It implies that Jekyll's still got the image in his mind as he leaves. It's just a great idea.



 
It's a great idea for silent films, but for an early sound film it might have been interesting to approach it from a different perspective. Such as having Jekyll and Lanyon talk while Ivy's parting words begin as a whisper and gradually overcome the exchange between the two men.