Of course I did! You know, such things mean a lot to me, they are rare and I am grateful)
I am not quite an artist (just drawing for my own pleasure to depict things from my head) but I have tenency to make doodles and sketches, too - that is really quite enjoyable, like things are coming to the paper direct from your mind... You use the tablet only or you do traditional art, too?
In case if you want to make more "complete" drawings I can advice my own experience when I took several unfinished sketches and made a complete "clean" piece, but they too are mostly b\w.
You know, also there are things that you return again and again to while sketching - sometimes they depict your curent state or/and something that is associated with it