Oh how adorable! It must be fun watching these 2.
At 7 weeks, it’s a bit hard to say what breed they are. Nothing stands out yet. You’ll probably get a better idea once they reach their full weight and adult body form. You might even see their ears lop yet. Colouration and markings can get us thinking they are one particular breed when that is not actually what they are. You can see certain colours and patterns across a range of breeds. To add the the confusion, there are colour names that are also rabbit breed names (for example, chinchilla, harliquin, silver marten). Kaylee having ruby eyes, I’d say her colour is called Himayalan. But she is not necessarily that breed.

You will see their colour change quite a bit I expect. They both have some shading evident. Kaylee may look a bit like RabbitPam’s Spike as she gets older. He also has that adorable light patch on his nose like Kaylee.

Hermione looks like her colour is sooty fawn or a torte colouring. I’d say the dark on her nose will eventually cover most of her face and her ears and feet will become darker. It is so cute when they only have that dark smudge on the nose when they’re babies.
I do encourage you to have a vet check their sexes for you. All to often people end up with a male and female and then a litter of babies. At 7 weeks old, this is not an issue just yet.
Enjoy your bunnies!