In my eyes #1 looks really cool - perhaps partly because of the metal. Such a watch in the size of 33-34 mm would also make a nice watch for the ladies.
On the base of the first one, I would remove the date from the moonphase indicator, to put it all around the dial, on the outer part of the dial, like on the Vintage one.
To me, it seems the more balanced, and less cluttered of the two. Yes, the hands will ocassionally obscure the month and day windows in a way that makes them difficult to read, but I feel that it's a small price to pay for a cleaner look and to make it easier to use the watch for what I'd be doing 90% of the time: discerning the time of day.
I would also agree with amanico that moving the date from around the moonphase to around the edge of the dial, with a red, or perhaps blue, date hand would be another option.
Perhaps drop the sweep second, and fit a sub-second instead.
Some teardrop lugs, about 37-38mm, and then it would be perfect.
No. 3 is a bit 'vintage Patek', but in this case, that's not a bad thing.
Thanks for sharing these mockups, I really like them.
altough I really like the new mut moon. Its not a triple calendar but its superb, except that I don't understand why they have to add 'automatic' below the moon phase....