Location, location, location..that will really be the deciding point. I believe Odie has a good idea about soliciting advice from the hospital staff.  I see the water shots and as suggested some "soothing" falls, etc., working well in a foyer or some particular adult area of the facility.  Still, for general use, the lambs are still my pick.

It is not so much "too artistic" as "suited to the location".   That is my 3 cents total in two posts.  As fine an an image might be, it should fit the need of the area of display.