William's suggestion about trying to get better detail in the sky is great. I can see clouds on the right, but there is not much definition.
"a cheap thrift store 1940's print of a mediocre painting". I think this defines it perfectly and I love the way you captured that effect in this photo. Cool idea to use the smoke to help with that. I have been to many antique stores and have seen paintings like this. Even though I have never bought one, I do love them for their nostalgic look.
Since you obviously like to experiment with taking pictures, I think one day you will want to check out what else your camera has to offer besides auto mode.
