This is the dress Maci wore in : https://www.weasyl.com/submission/870347/together-forever
Not sure when I will have this done by but it will take a lot out of me to finish it so heres some info;
I decided to draw a full version of it and considering most of Maci's dress designs are based or inspired mainly by belly dancer dresses I went with a little belly dance pose of sorts.
Mixed it up with some Sangheili culture and shazam this is the by-product of dress designs for sangheili females that I can come up with. Also a little bit of Slave Leia inspired too xD