So it is, what a beauty.
Re your #12:
I have been wondering for some time if these are the two round towers put up on Clarke's pier of 1495 for securing vessels to or whether they are stylised representations of the Black Bulwark and Archcliffe Fort. According to Hasenson, the pier and towers were still intact in 1520 when Henry set sail for the Field of the Cloth of Gold but had largely been destroyed by gales by 1530. As the picture of the Embarkation was not painted until around 1545, perhaps these are indeed the two defensive structures, particularly since the picture shows only cannon mounted on them and no bolts and rings for mooring vessels.
The book accompanying the engraving made of this massive picture for the Society of Antiquaries in 1781 states "The two forts here described were the Arch-cliff fort to the west, and the Black bulwark to the east. The picture in the collection of Lord Montagu above mentioned, exhibits these two forts as being near the foot of the round hill called Shakespear's cliff and a plan of the town and harbour of Dover made in the reign of Queen Elizabeth (see the plate annexed) points out with precision the situation of the two forts."