Help me decide when to wear this dress? (Welcome party? Wedding showers?)

Hi BBB,

i think I found my wedding dress! One of the amazing features is that you can remove the tulle skirt underneath and it will transform into a shorter dress for the after-party.

However, I found this other dress that I was planning on wearing for the after party, but my wedding dress now acts as both. Is it appropriate to wear this other shorter dress for other events instead? Since this secondary dress is expensive, I’m trying to justify wearing it to more than one event.

my wedding will be a multi-day event with a welcome party the first night, rehearsal dinner the second evening, wedding the third, and one day of relaxation before people leave the following day.

since the wedding is international, we will also be having 4 local wedding “showers” for those who can’t make the main wedding. One of those local wedding parties will be after my fiancé and I go to our city hall to get legally married.

here is the shorter dress I am looking at:

https://preview.redd.it/9wkbmvshywbe1.jpg?width=662&format=pjpg&auto=webp&s=b6cf84c8775dc710d210f5498858a89e2ad09d2d

And here is the wedding dress

https://preview.redd.it/gtyxls05ygce1.png?width=1126&format=png&auto=webp&s=cbb9862d3d1301cecb04e681e754e4b47725eb18

https://preview.redd.it/pgrwmw05ygce1.png?width=1126&format=png&auto=webp&s=135bed28c8a8ec4a375b8a03043c360f857b2a34

Thoughts on when I can wear the first dress? (Rehearsal Dinner? Local Wedding Parties/Showers?)

are the two dresses too similar? Would the shorter dress take away from the wedding dress? Other thoughts? Thank you!