Happy - Agree with others about having a shallower dof just to make the statue pop more. But I prefer the original to the tighter crop because it gives more context.
Abandoned - Nice find! I do agree that, for the theme, having a wider shot will make it look more abandoned. However, as a generic photo, I like your shot because all the decaying parts of the vehicle are intersting to look at in detail. Just wish the front of the vehicle were sharper as there's a lot to look at there, with the bashed headlights and all the rubbish living in the "cubby holes".
Camouflage - I think it works for the theme. Just needs to be brighter.