It's a bit difficult to tell from the picture, but IMO I think she might be okay so long as the boot doesn't break down any further for a while.
It should be normal for the right boot to crease a bit more since that's her landing foot. A lot of skaters will experience a slight crease in the boot after skating in them a short while. This actually happened to me when I bought my SP-Teri KT-2 boots, and to be on the safe side, I immediately sent back to the manufacturer to have additional support placed inside the boot.
I would be concerned if the crease in the boot started to show going further toward the back ankle bone. The crease in the front looks okay from what I can see, but if it starts going more than halfway across the boot, perhaps you have a bad boot? Or you were sold a boot that is not supposed to be used for the level your daughter is skating at.
With it only being 2 months since purchasing, perhaps you have a chance to have Riedell check them out, however that might be too much time since the point of purchase to recoup any costs. Luckily in my case, I sent my boots back right away, so SP Teri accomodated me for free.
I have a great sports tech guy that knows a lot about the build of skates. He mentioned to me before that sometimes the reinforcement in boots (even very stiff ones) doesn't work out as expected based on the type of materials used. In my experience, I simply needed the manufacturer to reinforce my boot with a new set of leather along the ankle. They basically replaced what was already inside the boot, but it made a world of difference.
Anyway, just my 2c to add
I thought I'd mention since it seems the fit of the boot isn't the issue.