My application has changed, what does it mean?

So, first, my Westminster foundation year choice was changed to first year, now the same is happening with both of my UAL foundation year choices, what does this mean? I don’t meet the entry requirements which is why I applied for foundation year, should I be worried?

No, this is common. Eventually you might get an offer for the main course, but they could switch you back to the FY on results day if needs be. They should explain this shortly after you receive any offer.
But for now, until you receive an offer, it is just them making internal changes whilst they consider your application. Again, nothing to worry about.

So, first, my Westminster foundation year choice was changed to first year, now the same is happening with both of my UAL foundation year choices, what does this mean? I don’t meet the entry requirements which is why I applied for foundation year, should I be worried?

UAL Foundation is a Foundation Diploma and not a foundation year. You don't apply through UCAS for this you apply directly to the university.
There's more detail here: https://www.thestudentroom.co.uk/showthread.php?t=5017684