Hi there - I love your columns - I think they look really great. Also your wave mosaic is very lovely indeed - I like how the mosaic and columns are nice and big, and that the map in general is quite simple and not too cluttered.

For the decrepit version (if you don't mind me offering my opinion) I'd consider toning down the saturation of the entire piece significantly (particularly of the grass, bush and desks), then adding some bluish-green (rather than greenish) water over. This might help to reduce the 'cartoonish' effect. Adding some ripples might also make the water look more watery. The only other thing is a line of green pixels along the length of the right-hand fallen column which looks very pixelated and should be fixed.