Put pictures in a vintage context

Hi,
I'm writing you from Belgium.
We are a young cupcake and cookies company and would eventually start working with you.
We have some pictures which we wish to give a vintage and very nice aspect in color on a professional manner, which is not the case for the moment.
The pictures have to be put on our internet site and on other sites on the web as publicity and encourage clients to buy our products.

What would be your price ? Pictures free of author rights.
I sent you two pictures as example to give you an idea ...

We like the site of
www.bettys.co.uk.
and wish to work in the same spirit/atmosphere for ours
Would it be possible for you ?

If we like the first result, we would work regularly with you.
What would be your price for one picture / and for 10 pictures ?

Thanks for your reply.