If these were just out-of-the-box models unpainted I would give them a 4 but the brilliance in the conversion earns them a 6. If they were painted adequately I would give them a 7. Frankly I think your Tau conversions are much better looking than the GW originals. Take a look at the ForgeWorld Tau battlesuits- they are much more posable and much better looking. I think they would fit in with your streamlined Tau much better than the plastic ones.