I like the big ones a lot. They all look a bit slow though and you don't get such a 'OMG a whole load of spiders rushing at me!' thing going as you had before as they seem more deliberate. I like the way they move.

In terms of environment something generally post apocolyptic (with rubble for them to climb over and emerge from behind) might be fun, or even just a kitchen! Be something very worrying about that lot roaming through a pleasant domestic scene and the contrast might work.