...I have never seen "walker" used in that context before (and I don't think it fits here). If the term is used colloquially to describe someone who is out on a casual walk I suppose it would make more sense.
Might just be I need to expand my cultural circles more, because the readers of this strip are clearly folks of culture
Also not really a fan of any of the options shown thus far tbh. Ordinarily I'd guess she'll end up wearing something that's slightly demur with perhaps a fringe of frills around the neckline/shoulders, but I'm hoping she actually goes with the Goth-loli option since that would be more in-character, no?