Games Workshop has released a cool new Codex and tons of great new models for the Dark Angels both in multi-part sets and in the Dark Vengeance Warhammer 40,000 starter set.
This article will focus on decorating ideas for the generic Space Marine models that are also used in Dark Angels armies to give them the same flare of the Unforgiven as the dedicated Dark Angels models.
Since all the tracked vehicles and Dreadnoughts used for the Dark Angels come from the generic Space Marines model range you'll likely want to customize them a bit to make them fit in more with the models that are already dripping in Dark Angels iconography.
Fortunately, GW has made this relatively easy and economical to do using both the Dark Angels Ravenwing Accessory Pack and all the extra bits from the many Dark Angels multi-part kits.
Below are a few examples of how to use these bits and some themed painting to generate the look of the First Legion.
The Dark Angels Ravenwing Accessory Pack contains many great vehicle sized Dark Angels badges for decorating larger models. In the photo below you can see three such badges.