Urgent - Write a short foreword and short commentary on art actvities for children

I need someone to write a short foreward plus commentary/intro to activities for an ebook about children's art activities. Approx 500 words. The ebook will be aimed at parents and adults workin with children under 5 years. I am looking for someone to write a foreword (original content) to include the benefits of art activity and experience in early years 0 - 5 as well as add some short bits at the beginning of each recipe/activity (approximately 15 activities) Would like the writing to be informative but light hearted and witty with some humour. PLease could you give me a short example of your writing relevant to my subject matter so i can get a gist of your style of your writing. This will be the first peice of work and will reuse the freelancer who does this piece of work well for me. I have had an attempt about the benefits so am able to provide some content plus the activities to work from.
I am looking for an hourlie with fixed to complete this if possible. Thank-you