Which shimmer should I try to get next?

1 - Shimmers 2 - Esper Gallery 3 - My scores

Hi!! Sorry if this is too extensive/TLDR, but I'd like to ask for advice on who to focus on getting/reso-ing next! My PVP/PW scores are not great, my max PW tier is 16.

I kindly ask for and appreciate helpful tips!! ^{^*}