Originally Posted by Sasara Kusugawa

Question: Why won't you do the same girl twice? Is it because it's a signature so everyone must have a different one?

*scrolls down the list*
*stares at twilightdream for taking Nerine slot*

I wrote you a message regarding Nerine. As for the Question itself allow me to explain to the best of my abilities:

The reason why I dont wanna do each girl twice is, that I do these for fun, and as such I am spending a LOT of time looking for the best possible flower picture out there, that I can get my hands onto.
Since I already got everything prepared and have the creation process down to pretty much just basic moving images parts on top of each other, selecting the most ideal color and adding the text "bubble", sharpening and then creating a secondary smaller version, the picture search is the part that takes the most time.
As such I am fairly confident that I would be hard pressed to find another "ideal" picture for someone who request a double of the same girl. While I might find a good one that fits both with color, the theme and is good for editing, it might be not of the same standard.

Now there are exceptions to this rule in two cases: As mentioned in the OP - I will do a double for girls that have multiple versions. In this case its first to come first to choose which version, and the next person requesting the same girl gets the second version OR in case of the girls with Bloomed who have 3 art styles, one of the two unused.
Second exception would be if you can provide me with a appropriate picture of the Flower that symbolizes your Flower Knight of choosing. The picture need to be in medium or high resolution, and must have enough "border" space on all sides so when I add the Girls and the Logo the Flower is still nicely displayed in the center and not completely covered by each.

That and the fact that its nice to have unique signatures per person. I think the people themselves are happy about their signatures and the fact that each of them is exclusively theirs. At least if its done in this style.