Quote Originally Posted by Rantzien View Post
Clad in crimson/ Red Clothes (Xerampelinae)
flames/ Fire (Ignus)
The Magistrate journeys/ Judgement (Iudicium)
Along the country lane/ Tree-lined Road (Xystus)
Keeping an eye out for/ Watchman (Vigil)
One clad in yellow hues/ Cowardice (Inaudax)
Who foolishly adores/ Love (Venus)
The still deep waters/ Flood (Inandantia)
And all that live in it/ Swordfish (Xiphias)

For line 6, it could also be referring to Trauma, who is fought after the puzzle is solved. But I'm inclined to think that it refers to Cowardice (Inaudax), either because someone depicted in the pain is clad in yellow, or the whole painting might have a yellow tone. The reason I'm guessing this is because it leaves only the paintings Sleep (Intervigilium), Garden (Vividarium) and Messenger (Viator), the only paintings actually used in the real puzzle.

Either way, I'm not sure if the answers for each line suffices as an answer for the riddle, but I'll just mention, for good measure, that the theme would be the Clock/Painting puzzle in Ultimecia's castle.
This makes quite a lot of sense, I would be suprised if it was incorrect.