Before jumping into changing hands, I would do some thorough research. Try to find as many examples of this model as you can.
Are there examples with dauphine hands? If so, what dial are they paired with and what year does their movement serial date to?
If you can find three examples that have the same dial with leaf hands, that could be evidence to presume that this is correct for this watch. Alternatively, if you find 4 examples that are the same, but 4 examples that used dauphine hands for example it could be that there was no clear rule. Especially if their production years are all over the place (based on the serial).
Usually by doing this, and compiling some evidence, you will see a clear correlation. I think with that under your belt you will make clear and correct decisions. The second example you show above, I do not believe to be correct. Hands, are almost always the same colour as the indices on the dial to start with and these hands are not. Personally I do not think this would have alpha hands - but your research should be able to help you come to your own conclusions? You could then post your findings here based on your research.
For me this is all part of the hobby, research, hunting and wearing!
😀
Enjoy.