They are neat. That second one sort of looks like the underside of a pier or something like that (with the bits hanging out in space like that .. makes me think we're looking up at the underside of a dock).
The first one, I liked a lot. I'm not sure I get the step up on the left though. It doesn't look like there's a step in the substrate ... well .. hmm, maybe there is. Gonna have to watch these vid's a few more times methinks!
