Hi! :)
This week I´ve been modelling a wooden shed with that beautiful silver gray aged look outside keeping the inside as naturally aged wood. Works just perfect with the beautiful trains from Bachmann. Link to a detailed guide DIY I published on Youtube: https://youtu.be/VCXWRFLVxe0 (https://youtu.be/VCXWRFLVxe0)
(http://www.xn--mrklintg-0zaq.se/anlaggningar/12-22/stummi/vboda_shed_gravel_1.jpg)