Yes, I am now on Tumblr. Though I had signed up for Tumblr three years back (No! I am not kidding) I recently started using it. It is simple, easy and looks lovely! Btw, all pictures that I will post on Tumblr will again be mine either shot, created, sketched or clicked.
Why don't you have a look at my Tumblr page : http://bit.ly/SQSPmz and let me know what you think about it. Love/hate/criticism/suggestions, everything!