I think your reference to graph paper was perfectly correct. I think that it is just unlikely that any of us have any pictures of butterflies on graph paper.
I was interested to see the discussion about if you could really be French because you speak English so well! I suppose that is a reflection on British students. I can't imagine many of them being able to ask a question fluently in French. Actually, many of them may not be able to ask a question fluently in English!!
![Very Happy :D](./images/smilies/icon_biggrin.gif)