Hello Simon,
I just woke up this morning and it's so warm here in Bali.
I've my revisions posted,
#82 #83 solid color for your letterhead, solid color is best for your corporate identity design because will save more your printer ink (Economical)
#84 Reversed version
#85 & #86 Black and White version and reversed
Let me know if you need any further assistance.
All the best,
Reka