That's a lovely Ornamental Plum, my neighbour has one in her yard, you don't see many that have been given enough room to spread out and show their beauty. Always seems a young tree gets tucked into a corner and has to be pruned to a nub to stop it pushing over the other shrubs it's crowding!
You are right, your tree's blossom is a much darker color. The ornamental plum has dark red leaves. Your Redbud is very beautiful. Can I take it that it is an American native tree?
It has not made it's way over the Pacific to OZ. Probably won't, our quarantine restrictions are very fierce - pity! Just think, we wouldn't have Jacaranda or Pepper trees (I grew up thinking they were natives, they come from South America!) On the other side of the coin, we also would not be stuck with Lantana!