This is really good david, beautiful light and sense of scale. I also like the handling, doesn't feel overly digital, lots of interesting ways of breaking up edges.From a storytelling pov I think you could push the bridge. Since it appears to stop abruptly, it seems to me that it's either decorative like the roman triumphant arches, or it's a ruined aqueduct. Maybe it's more of a sci-fi monolith and doesn't need explaining, I don't know! :pAlso, congrats on the teaching job, sounds awesome!