If I'm honest it doesn't seem as if it was proffesionally done, and thus to me depending on the amount of competing dog walking websites in the area I would assume it wasn't as credible as some of the others. Granted if it was the only 1 with a website I would as by default it is the only 1 to invest in a website, thus better than the rest as it has somewhat of a marketing budget.
I see where you where going mailchimp kinda way, I think, just think you missed it slighlty.
Step1, step 2, step 3 and post code finder good useability concepts in theory. Just need to work on the design a bit more in my opinion.
first - you'll likely have issues from google if this is a search engine. They've complained about similar named ones before
Second, similar to Jaz's view but for me it just seems like it's either not gone far enough into the 'sketch' style or it's not clean enough, it's sitting in that grey middle area that doesn't work very well