captain harlock cosplay costume

Obviously I will have to buy some but I would rather make as much as possible. I dont know what to do lately I haven’t been able to order anything for my cosplays so im stuck with what I have and sadly its not a lot, but hey I was wondering who do you guys think I should cosplay? The only thing I was really careful about was to make the front part broader on the legs, iron man suits to make up for the fact that the purple fabric in the back doesn’t stretch.