That's the way to paint "real" heraldry
Forget russian painters presenting heraldry as copy of M Angelo ( they are beautifull but mainly innacurates and pure fantasy )
More: the most parts of the nobles participating at the battle were not rich, they paid themself for their equipment and own men at arms .
The price of a knight armour was very, very high; so some went to battle with armour of their father, or grand father, even grand-grand greatfather, sometime roughly reworked to fit, heraldry colours simply refreshed . Keep painting that way or overcharged .
Best