No, no, that's exactly what I do. I'll see a picture and it'll just give me story ideas and plots and then I have to make layouts for them. I feel bad for making layouts without actual stories though, it saddens me for some reason, lol.
I love making story layouts. Sometimes, I'll just find a picture I like and make a layout with it. Or when I have a new story coming out, I'll make multiple layouts and pick my favorite for the story. I don't know. I have no life xD