It looks good on mobile but the font is a bit small for me when I view the site on my desktop browser. Not a massive deal, I don't know if Wordpress has an option to let you change the font size specifically for desktop? I wouldn't use a font with serifs myself - I like it in the header but not so much in the body.
Some typos on the Home page - space before the full stop after 'babies and young children'. Cul-de-sac should be hyphenated (at least that's how I've always written it and I live on one). There should be an apostrophe on "minutes' in "Just ten minutes' walk".
There is space to leave the car on the driveway for parents who commute into work. - how many spaces do you really have? This is a very generous added extra in my view, so I'd make sure you are very clear about the terms of use and how many cars you have room for.
Children have unrestricted access to a large enclosed garden - unrestricted conjures up the image of them running about unsupervised, which I know isn't want you mean. Maybe 'children enjoy access to .. '?
With the web form for more info, is there an option to include a Captcha or something so that you don't get spammed with lots of robots filling the form in? Not sure if Wordpress offer that.
On this page I noticed a 'dairy' when 'diary' was meant.
Overall, I think it will look quite different when you put the pictures in. Normally when you're designing a website you would put in placeholders for where the pictures will go, so that you can get a feel for how a page will look when it's finished. You can use a site like Placehold.it to generate a blank 'image' of the right size to slot in.
You've done a great job for someone new to the web game, perhaps you could open up a side business in web design for when the mindees are asleep 