Just curious: did you all look like The Joker after sipping on those chocolate-rimmed martinis?
Seriously, you did a great job! It's not easy to put together a dinner party. You obviously put a lot of thought into planning it and it really shows.
One thing I noticed is that your Caprese salad might have been done more simple (and more authentic) without the addition of balsamic vinegar, an ingredient which you repeated in your main course. True Caprese is simply ripe tomatoes, bufala mozzarella, extra-virgin olive oil, basil and salt. Pure simplicity, the key is in the quality of the ingredients.
I agree with KYH regarding the ravioli. They sure do look nice!
For your plating (ravioli), try next time to keep things tidy and central. Very important with smaller plates. A slight central overlaping of your ravioli, veg and parsley sprig would have given your dish a more unified look, and the chopped herbs would be unnecessary. Even in restaurants where they serve you "trios" on larger plates, though they might have three items, they are cohesive little vignettes. That said, it does look delicious!
For tiramisu, you did good. The soft lady fingers would have disintegrated to a mush. The harder ones are prefered.
You should be very proud of yourself!!!!