/cgl/ - Cosplay & EGL

I'm getting this dress in a trade and trying to figure out how to coord it. I'm looking at pictures on tumblr and google but the majority of the coords I see are either a trainwreck in terms of color and detail, or just super ageplay-looking.

How can I coord this more maturely? I put something together but I feel like I'm relying too much on red...this is a pretty specific color of blue and most of the accessories I find are either sax or navy (and earlier I already tried desperately to find appropriate royal/cobalt blue type stuff for another coord) and so I'm worried there's not enough blue, esp if I use red shoes (boots?) and a red bag.

I'm trading my OP version of this for this jsk, and also struggled trying to put together an outfit with the op. I like this print but I find it hard to coord for some reason.