LOL! That is one hell of a potato head (nah, only kidding - you look like a dude DimitrisLiatsos - wouldn’t wanna be in your position there though).
Anyway, back to the serious;
Personally I prefer the vertical orientation because it makes the nodes seem really really tall - however, I understand that this leaves less room for distruction etc. so it’s a hard one to call.
The landscape works ok - I mean, it’s not bad or anything - just it makes the nodes look less ‘grand’ (to over use the key word of this contest).
I think there could be a way of putting destruction into composition #02 - if you have the anchor going away from the viewer, and move that left most node (possibly get rid of it), you could see the destruction… aww man this is a hard one to call!
I recon whatever you chose you can probably make work - if destruction is important to the piece (which I gather it is), then I guess the landscape is worth while, as whilst you loose out a little on the sense of scale (and I do mean a little - not much at all), you gain all the added bonuses of more landscape to play with.
I think the landscape orientation is the best choice (phew - got there in the end).