Okay some improvement ideas...and not criticism.
I think the font on your home page should be larger....not everyone that will view your page will have excellent eye sight.
I like websites with nice clear pictures that show the sires and dams...preferrably by themselves.....so I can see their conformation. That's hard to judge when held in someone's arms. I do like that you have past puppy pictures on there. If someone is offering champion lines...I like to know the title and venue the dog has placed.
I also like to read contracts if you have one....including whatever health guarantee you might offer.
Personally not being allowed to come to your home would turn me off...especially given the fact you prefer cash as a deposit....but that's just me. I would offer some other means of deposits too...paypal for instance.
HTH and good luck.