Hi, I've been working making this kind of pictures for over 9 years in a photostudio. I don't mind why you want this picture, I just make the job ;)
I can do it in 2 days, I just need your picture and her, it would be better if both pictures have the same quality and if the quality of the picture are good it would a better final work, please check the quality of both images, and make sure that the pose of both of you can be compatible. Also i need to know how many it would be. Hope to hear from you.