This should be one or two paragraphs with some key points about who you are, what credentials you have and why you do what you do. Start with a strong personal statement, then zoom out and give potential clients more context.
Three to four sentences describing your overall offering and its benefits. Keep things conversational, inspirational, and top level; this is a place to really distill what is most important and most enticing about your services. In a nutshell, what are you offering and how will it improve the lives of your potential clients?
Two to three sentences describing the service and its benefits, same as above. Though keep in mind, this should be the second tier offering, so make sure to emphasize both the added services and reasonable pricing.
Two to three sentences describing the service and its benefits, same as above. This should be the third tier offering, so emphasize the premium services and benefits and try to draw potential clients to this option.