Palazzo dei Leoni NEW

I can echo Rashad here. Caustics tend to go brighter then expected more often. Judging by the light intensity in your scene, the previous sky fits better with its more bluish color. The plants need more light in-between the leaves. You can do that with some subtle secondary radial lights near the plants. If you have control over the floor texture and other stone elements, add a bit of bump. It will make all the details of architecture stand out more.

Moving in the right direction. Caustics are often surprisingly bright. I think you could have taken more risk with the amount of light used for the caustic. Otherwise, the scene is perfect.

Apart from the sky, I had to blink-compare. Yes, there are some faint caustics on the lion's stand. Excellent. Again 5/5.

I think i liked the sky better in the previous version, but thats just personel taste. the shadows look great. well done.