Hi Woodstone, strictly speaking - orks must be dirty and full rost, slopper, dust and oil and more. Model is already sold, but for the next time I'll think about your comment :-)
Orks should never have a shower, not even a surgeon !!!
Even the metal is clean and shiny. O_o
I like your painting technique but for eldars or ultramarines, anyway... not orks. Sorry.
Dust and rust for next step ? ;)