I like the idea! Also, I like the brush torch and the fact that the red circle looks like it's painted. The circles details are also great.
Yet I think that the brush looks a bit out of place, not in the idea but in the style - it just looks too clean when I compare it to the great "brushy" detail of the circles. If you want to keep the clean lineart I would recommend add some line weight to it to add interest and to break the constant look of the lines. Still like it! I wish you the best of luck - keep it up!