Note: I've updated this with a updated version of the render. Managed to get Blender to behave and tweaked the lighting and the Depth of Field to not be so harsh.
I'm not really proud of this render. Things just didn't work out the way I wanted and some things happening at home meant I didn't get the time I needed to try to fix things. Saying that even with extra time it still may not have worked.
I also know the choice of Depth of Field might not be to everyone's taste.
Still hope Diaochan fans can enjoy it, and I should have a render coming out this Thursday to make up for this one not being great.