Basically the Jones Act applies to cargo and the PVSA applies to passengers. Very true, except you should say "the voyage" (which consists of two cruises). I mention this, not because you are wrong (your answer is correct) but rather because people keep looking at each cruise as being separate, and it is is the combination of multiple cruises, ON THE SAME SHIP, that must be looked at. As Chengkp75 correctly points out, neither cruise, nor the combination of the two, falls within the jurisdiction of the PVSA.
You don't need a mouse and you don't need to add text. I don't have an ipad, but I assume you have four arrows (up, down, left, and right). If not, this is just one more reason I don't have an ipad. I use a desktop computer. However, when posting photographs I use the following to add spaces between the photographs: Use the down arrow to get the bottom of your post. If necessary use the right arrow to move to the end of the bottom line in your post. Then use the enter key to create blank lines. I find that one blank line is enough ... Hope this helps.