This gravestone is located in St. Nicholas Churchyard in Dalkeith, Midlothian, Scotland. The inscription has disappeared due to weather erosion which is also attacking the sculptured effigies. Although this stone hosts common mortality symbols of Memento Mori in the hourglass, arrows and the skull the remainder is difficult to interpret.
On a humourous note, the skull on the bottom left appears to be wearing sunglasses.
Is the floating image a mother looking down from Heaven on her children? Note how this figure seems to be casually resting on her hand. Is this actually a female or a male as period dress may indicate? What is the triangular shape the figure is holding in the left hand? Are the cherubs below children or representative of angels?
What are the cherubs holding onto? Is it the wings of a winged effigy or a shroud/drape which denotes mourning and often borders a dedication? Or is the entire scene related to a Fraternity?
What is the boat shaped item? A similar symbol is found in the Old Town Cemeteries in Stirling, Scotland.
Source: https://www.flickr.com/photos/europealacarte/2245476877/in/dateposted/