I love the why these turned out.  They were a little bit of work, but i think they look amazing.  The actual process was fairly simple, it was just time consuming.

First, i got a 4ft x 8ft sheet of 1/2 inch and 1/4 inch styrofoam. 

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20180814_182556
 

Then i took some store bought tombstones

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20180814_182636
 

and traced them out on the styrofoam sheet.  

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20180814_182602
 

In order to get a richer 3-dimensional look, i cut out side and tops and bottoms also.  Looking back, it mightve just been easier to cut the same shape and layer it instead.

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20180814_194627
 

Everything was glued together using styrofoam glue and then glued to a flat base to stand up.

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20180822_193424
 

Next it was time to add some character.  So i took various tools, mostly a thin file, and made cracks and symbols in various places on them..

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20180924_120115
 

Once that was complete, i took brush cleaning (mostly a very strong acetone cleaner) and lighting dabbed, dropped and gouged various bits and pieces.  Then i ran it along all the cracks and symbols made by the file earlier.  Next i ran it along every single edge and corner to smooth it out and wear it down.  finally i "washed" the whole thing in a very VERY light coat of brush cleaning, EVERYWHERE.  This got rid of the styrofoam look and gave it more of a stone like texture.

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20180822_193446
 

After all that, i took a mixture of joint compound, grey acrylic paint and a LOT of sand and and diluted that with a fair bit of water.  Then i brushed a light coat of this mixture all over every surface, paying attention to hide all the seams.

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20180822_193452
 

after that dried, i took the grey acrylic paint and dry brush it over everything.  The i took some black and dried brushed that in select areas to add depth and shadow.  Lastly i took some white and dry brushed that along edges to highlight them.

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20180829_130727