Hi!
I´ve got started on weathering since a few weeks. Spent most of that time reading and trying out metods and materials. I ended up with a mix of airbrushed wash, brush applied wash in streaks. Followed by color detailing with alcryllic powder, sealing the Creation with a matt varnish (Clear cote). Sounds like a lot of work, but didn´t take more than 3 hours including stops/starts and clean up of tools.
My prototype:
My Märklin BR24: