The rust gets a 10, The rhino is interesting and could benefit from brushing on the highlights with the edge of your brush instead of painting them on.. (I'm being helpful not critical) It's still pretty cool. the guy needs a repaint, but you got that already. You might try making him a templar to fit the vehicle, instead of a tech marine. His bolter casing could use a color besides silver. But over all pretty cool.
Now that's a really cool Rhino.
It looks good in all ways,accept the gunner.
It looks so different when you look at the Rhino paintwork.
Plz repaint that guy.
Cheers,Michiel