here is a 1st part of tutorial about building of vignette for RTW Russian infantrymen.
Pictures tell you more....
The basic "box" is made from balsa wood (thickness 4 mm). The plate at the bottom are two boards glued together to reach the desired thickness.
The basic shape of rock is made from styrodur. It´s fixed with pins at this stage.
Now, it´s fixed with glue-gun.
Does it fit together.....???
Now it´s time to apply a thick "stone coat". I used mixture of gypsum, PVA glue, fine sand (IKEA) and saw-dust and water, of course. The mixture must be dense. Yes I know, it looks terrible at this stage :-)
Now, it´s "carved" with various chisels, files, sandpapers.... This is not the end. Some places must be carved again and some places must be repaired (blue marked areas). Be careful when using chisels. I hurt my finger with it. It´s infernal pain !!!!!
Lethal tools :-))