Next Batch of N Gauge weathering

This is the second batch of my sons weathering requirement. I must say that N gauge weathering is not as easy as it may seem, at least I find it so. A least they will now look better on his layout?

PNA Railtrack – 3 in rake

Salmon – 1 in Rake

Limpets – 3 in rake

RMC Bogies – 4 in rake

Seacows – 5 in Rake

RES BG’s – 6 in rake