Your website looks great and I love the fun creative options you have like feather extensions! If I had a pet and lived in your area I would totally use your services.
But, I did notice a few things when I visited the site. For one, you have your Twitter updates displaying at the bottom of the page but you haven't tweeted anything since February. This kind of makes it look like you either don't actually use Twitter or went out of business, I hope it's the former! Your Facebook page on the other hand, is very active and looks great. So, either ditch Twitter or start actually using it.
Also, you don't have any internal links, i.e. links on pages of your website that take visitors to other pages of the site. For example, on the contact page where it lists your services, you should be able to click those to view the services. This is good for visitors but it's mostly for the benefit of Google, so you should look into it.
For SEO purposes and finding clients, have you thought about starting a blog or guest posting on pet blogs? You could write about tips for pet owners, unique dog styles, etc. and it would get your name out there. Guest posting is a GREAT way to improve SEO.
As far as offline marketing goes, have you thought about trying to partner with the local animal shelter? You could get brochures or maybe magnets that let customers know that their newly adopted pet's first grooming session is 10% off and the shelter could give them out for you.
If you have any questions or would like any more tips, I work as an internet marketer focusing on SEO and social media marketing, just PM me and I will give you my contact information. Don't worry I'll give out the advice for free