I am a little new here but wondering if more Sandra H. will be done or how to find more of her on the net?

There have been several threads about models other alias'. Try using the search function.

You are new, so this might help. On any of her cards, select the "Her Collection" tab. There may be more cards at 149 and 151 that are Sandra H that are not released yet, but they could be Andie.

You are not the only one wanting more of Sandra H.