Hi Benevolent III, here is my critique of your Lugdunum. :)
First of all all your houses are small casa, which has a prosperity cap of 35, but the prosperity goal is 50, so you cannot win this mission with the city as-is. This is easily remedied by turning pottery and furniture off "stockpiling" and putting some amphitheaters in your neighborhoods to upgrade your houses to medium insulae. However I get the feeling that was your intention all along as the population is only 4,294.
You should remodel the western and central plateau farms to reduce the number of intersections. You have too many intersections in these areas in my opinion.
Also you have the plateau granaries too far away from the ramp, making it less logistically efficient that it could be.
The northern aqueduct (above the plateau) is unnecessary if you provide water to the western of the two plateau neighborhoods from the aqueduct near the mission post. I like to build "clean" looking cities with a minimum of buildings/structures to accomplish the task, so to me that aqueduct is ugly and unneeded.
If I was building your city I would replace all the low bridges with ship bridges for aesthetic reasons. This is similar to the above comment.
Trade could be made more efficient by placing the timber warehouse and furniture workshops on the island SE of the farm island, thus shortening trade caravan's already long journeys. Warehouses set to "get" weapons and marble (your exports) could also be located here.
Why so much pottery (228 cart loads!) and furniture (134!)?
Your ratings as listed are not correct. The population is only 4294, the culture rating only 66,prosperity only 34 and favor only 43. I am assuming you counted all these ratings after you had won by upgrading all your houses to medium insulae, but I personally find it a bit confusing.
Hope I've been insightful and helpful, any questions are welcome. :)