I’ll assume you are just starting out?
The good news is that I love the sepia shot of the rose ( And I generally hate flowers pics) This shot is well exposed and nicely processed. The bad news is that all the others have faults and none of them really have any WOW! You also have a lot of very different types of shot so it’s not easy to give general advice. Why not pick out the one you like best and I’ll gladly let you know how to improve it.