These responses are great. My son did draw just a few detailed pictures at a very early age (around 2.5). One of them was of a bag that had a small opening and "dirt" inside of it, which seemed to show depth and dimension. He also got perspective by the time he was 3, putting smaller objects behind larger ones, and he would often draw random scribbles and then "find" pictures in them, like an inkblot test. I have a great picture of a "lilytrotter" that he saw in his scribbles when he was 3. In the last few months though, it has really become a passion, and instead of bringing home pictures of "hurricanes" he's bringing home pictures of his bedroom completed with the bedposts, chair, lamp and toy box, all drawn in the right colors and locations from memory. I think maybe his fine motor skills have just suddenly caught up with his imagination.