I really don't think much of Tau (mostly because of the anime influence, which I disdain), but this is an amazing mini. A few more like that, and it might bring me around on the Tau!
This is an amazingly well done mini. Blending on those flat surfaces is often quite difficult, so I commend the work. I'm planning a similar style with deep to bright blue instead of the sand/brown/tan on my Shas'O Commander. I'll reference this.
Very nice, hefty conversion, them railguns are heavy. Like the missle boxes on the shoulders and the helmet, the chestplate makes him look kinda...pudgy. I dunno, nice job (10 cause Tau dominate)