The whole thing, start to finish

Start with the part people need first. Say it plainly, in the words you would use out loud, and leave the detail for further down the page where it is not in anybody way. A column like this holds a surprising amount before it starts to feel heavy, so there is room to set the scene properly: who this is for, what they usually come here wanting, and what tends to happen once they ask. Keep the sentences short and let the paragraph breaks do the work. If you find yourself writing a list, write the list. People read those, and they skip long blocks that could have been one. Anything that only matters to a handful of readers can go on its own page and be linked to from here instead.

Then carry on here. On a phone the two columns stack into one, so it still reads top to bottom in the order you meant it, and nothing gets stranded halfway down the screen on its own. This side is a good place for the practical half: how the work runs week to week, what you need from the reader before anything can start, what it costs and roughly how long it takes from the first message through to the last delivery. End it with the thing you would say last if somebody asked you across a table, because that is the line people tend to remember afterwards, and it gives the whole section somewhere to land rather than simply stopping halfway.