Congratulations!

I like the look of the three scale wide white lined belly on the one you posted. I'm a little less sure on what to look for on top but many of my possible hets with the belly marks are also fairly bright colored and with hooks in the pattern and reduced pattern toward the tail end.

As already pointed out and a moot point now you want to do your research on fauna classifieds for any seller and make sure their story checks out as much as possible. I probably wouldn't have paid that much for no info pet store girls (i.e. the only way it would have been going by the marker only) but if the seller checks out and is claiming 100% het then with markers like that I bet they will make you happy with your investment.