Hi [Prospect Name],
I hope this email finds you well.
I'm writing to you today to follow up on our previous conversation.
I shared a case study with you that outlined a recent project that we worked on. I hope you had a chance to read it.
If you have any questions, please don't hesitate to contact me. I'd be happy to answer them.
I'd also love to schedule a time to chat with you and discuss how we can help you achieve your goals. I'm available [Days and Times].