Do you have a facebook account? I see the image since I'm facebook friend of the model Mala Mastroberte, search for her and ask for her friendship if you want to see the link... I tried to do a screenshot but unfortunately DA does not allow to enclose it here nor in a note. Otherwise let me know an email address to send the screenshot there.
I think it may have been because I was not friends with Mala. I was able to locate the picture through a google image search. I see the resemblance to the reference, and I also see the personal touch that you applied. I can honestly say this is one of the best Pin-Up drawings I have ever seen.
What a beautiful, beautiful work! It brings to mind my own Anne hardbargainart.deviantart.com/… from some months ago. I love the ever classic theme of the beautiful damsel with her uncooperative hot rod. I very well may have to do a tribute to this image!