For the sequential segment, you want "within" not "after". After means the x time has to occur before the second criterion. Within, means that at most x time can pass between the events.
So, Product page and then within one page (so the very next page) review page.
Now, this is a visit level segment, since it is sequential. You will want to make sure you break it down by page name so that you can see how many of the hits are for that specific page, because it will return all pages in that visit by default. One way to get around having to use the breakdown in addition to the segment is to build a visit in hit segment (putting your sequential visit container inside of a segment that is at a Hit level, with the page you are interested in duplicated in the hit part of the segment).