Comic Layouts

I've looked into comics such as The Walking Dead to get an idea about layouts and standard formatting for how long to make my comic. most seemed to have 22 pages or so of narrative work, broken up with some splash pages, advertisements, letters etc. sections of the comics are broken up with splash panels to emphasis and draw attention to certain aspects and events. This seems like a good format to work with- although I may have to shorten it or lengthening it depending on how much narrative I have to put in and how much time I have.