Before anything else, building a chain of trust with my clients is always first and foremost before I go further thru any transaction. And so it is in goodwill that I only require 10% for the initial milestone. This will give you the confidence that more than just the business of it, I give so much importance to what is mutually beneficial, a constructive outcome and gaining your professional respect, as so I hope vice versa as well.
Upon submitting my first draft, the entirety of my effort on the project will be proof of my earnestness with the project. To which I consider it proper only then to ask another milestone of 25% of actual cost.
There will only be a 3rd, which is the last of the installments, to be paid when project is final.
When submitting my draft and revisions, outputs will be rendered with a respectful watermark. Upon completion and Final, and when client has paid the outstanding balance (the remaining 65% of actual cost)- the watermark shall be removed.