As the son of a fairly successful artist, it is likely Wyck was painting and drawing from a young age. Enjoying the patronage of the Duke of Ormond Wyck was known as the best landscape painter in London by 1686. By the time William III of England ascended to the throne, Wyck was also enjoying the patronage of the Duke of Monmouth. He painted a portrait of Monmouth on horseback in the 1670s, as well as many depictions of him in battle, such as at the Siege of Maastricht in 1673, and at the Battle of Bothwell Bridge in 1679.