I tried taking decent pics but my camera was failing me big time
Anyway I hope you get the jist!
The two knights of Relan are from Enipel territory distinguishable by their yellow skin tone and birth marks but are wearing classic empire red armour with White wood spears (another reference to Enipel).
Danomar is wearing the White armour of the Enipel but has modified the arm and leg plates with a White/Red colour to show he is still loyal to the Empire. Enjoy!