This custom is absolutely perfect in every way. But, since I have to type a 100-word minimum, here goes.
Dreamsicle's mane is wonderful. What hair did you re-hair her with? I love both the color and style. Your paint technique is neither rushed nor sloppy (and my "customs" suck compared to this), and the eyes look awesome!
I would say this is a very good commission. The cutie mark is great; it looks like you bought it like that.
My only complaint is part of the eyes. Like I said above, they're great, but I can tell that you extended the size of the regular eye, and you can still see that it's there. Other than that, this is probably one of my favorite custom ponies you've made. Your customs are probably the greatest I've ever seen, and you're the one who got me to start making customized blindbags.
The colourization is very nice, very subtle and keeping with the overall theme.
The blend of hair colours is very well done, and I love the curl to the tail. The mane is not excessively long, which makes the overall look very pleasing.
Excellent job on the cutie mark and on the repaint of the eyes.
Overall, this is the type of piece I would want in my personal collection, and I personally think you did a fantastic job on this. I look forward to seeing more of your work, and I wish you well on your future projects. Again, great job!