Must be a balance between playful and professional. Use lots of colour, probably pastels as it shouldn't be dark.
Must use stock photography of childcare related items - fun/colourful. Probably at least one with an adult staff member helping children.
Pay close attention to the comments on the 'inspirational websites' as you will get a clear idea of the layout requirements and the amount of colour.
Colours shouldn't clash with the existing logo (duh), but don't feel constrained by it. Note the rectangles below the logo aren't buttons, nor are they part of the logo, but should appear somewhere either exactly the same or slightly altered to fit the design.
Phone number must be prominent up the top, possibly email too if you can make it look good, but the main thing is the phone number
I may update this section as I believe I forgot some things I originally wrote - 99d lost it (just this section...) when I submitted!