I am thinking of painting a Feudal English army as my next project. Are there any good painting resources out there?Was heraldry in use much at this time? Many thanks, Paul.
The resources for a Feudal English host are nearly limitless in the internet age. First thing I would do is decide approximately what year or approximate era of English army you want to render. Early armies, those of the era of St. Stephen and Mathilda are still the era of chainmail and before the age of heraldry. Shields are still painted in a decorative style at this time with geometric patterns and mythical beasts and surcoats are just coming into fashion and are of simple colors. The era of high heraldic interest starts in the 13th Century and is going full steam during the Second Barons War and the Scottish Wars of Independence. In addition to books a plenty for the period there are some great armorial rolls from the Scottish Wars that you can get a feel for the exact coat of arms for the participants. en.wikipedia.org/wiki/Roll_of_arms
So you're looking at the English of Henry II, and his sons Richard and John. Heraldry as we think of it was in its very infancy at this point. Richard I was the first English monarch to employ the specific heraldry of the 3 leopards on a field gu. Kite shields, while still used are disappearing during this period.
I believe Heath (and other authors) may derive some benefit from the site - at least Duncan Head has linked to it on numerous occasions. There are also copyrights on the illustrations and links to original sources for them that were not in the book indicating that they are not just scans.