Had this idea in my head for a while as a cool portfolio piece for Riot, so when the contest popped up I knew I wanted to use the opportunity to actually work it out ^_^
Unfortunately I didn't really get to start until about 3 weeks before the deadline, so I had to rush it a bit. It was a definite challenge, but a fun one too!
I done a bunch of research, made concepts, comp sketches and then went with this one. You can see the whole process on my polycount threat: http://polycount.com/discussion/195654/phantom-nami#latest