Need Advice: Does my honeymoon plan sound reasonable and fun?

I am thinking of doing around 16 days including travel to and from the states for our honeymoon. The plan is to fly into Rome and out of Geneva since they are direct flights from our base airport. The cities planned are Siena, Florence, Aix-en-Provence, and Annecy.

Day 1: Arrive in Rome and take the train to Siena. Days 1–2: Stay in Siena (2 nights).

Day 3: Travel from Siena to Florence Days 3–7: Stay in Florence (5 nights).

Day 8: Travel from Florence to Aix-en-Provence. Days 8–11: Stay in Aix-en-Provence (4 nights).

Day 12: Travel from Aix-en-Provence to Annecy. Days 12–15: Stay in Annecy (4 nights).

Day 16: Travel from Annecy to Geneva for departure.

Does this sound like a reasonable amount of time? I would like to not city hop too much but also get a taste of Tuscany, Southern France, and the French alps. Also, we will do some day-trips to see some smaller towns in provence and Tuscany, but I feel like not trying to hotel hop every other day will be more relaxing. We also want to avoid Rome as we view that as a 7 day trip within itself and don’t want to rush our way through such a big city.