So what I wanna say. I need terrain. Somehow I'd overlooked this fact when painting my little dudes and murderous lizards. I have boarding action set, yeap. But. BUT! Baneblade shooting Carnifex on other side of little wall is surreal. Also test game shows that even mostly infantry armies  couldn't fight properly on such table. 

Now I need to build( I think it's preferable option) or buy( even gakky terrain set cost fortune for what you get, not speaking of GW's). Big plus of former that I can build different kind of terrain and not only ruins and mechanicus who-know-what. 

So today I started build my first ruin and iirc first terrain piece. I use foamed PVC since it's cheap and easy to work. 

Here is inner walls. I add another layer outside. And it's become bulkier and actually start looks like damaged walls.

So guys any suggestions for terrain to build?