Greetings Mortals

,
Recently i returned to painting miniatures after
a multi year sabatical.
I still have a ork starting box lying around,
so i started with a deff dread. (Still
WIP though)
I'm aiming towards a rusted and weathered look.
I tried to accomplish this with a black primer,
base it with a mourn fang brown, multiple drybrushing
with lead belcher in various strengths, a nuln oil in between,
followed by a very soft drybrush of lead belcher,
and ended with a agrax earth shade in the cravices and
Such.
Now i was hoping to get some constructed criticism,
Some helpfull tips to improve my style, and perhaps
Other techniques to try out.
Thanks in advance!