Hi Rob
Both this and your Hien are excellent builds. I must admit I'd try to pull out the panel lines a bit on both of them.
I know the Seirans were virtually factory-fresh at the War's end, but all modelling is about artistic licence really, and I do think some subtle shading would make a great build look better still.
Seeing the stage the model's at, I'd be very tempted to try a bit of BrandydogUK's
Panel Lines With Pencil ... I'm certainly going to give his technique a try in future!
Hope this helps
Rowan