Coques is mainly known for his portraits, and in particular, his group portraits. His work shows the influence of the great Antwerp masters such as Rubens. However, the most important influence on his work was van Dyck. Some of Coques' works can in fact be regarded as the transposition of van Dyck compositions to smaller scale cabinet pieces. It can be said that he provided to well-off bourgeoisie what van Dyck was providing to his aristocratic patron. In that role he replaced from the 1640s the other leading 17th century portrait painter to the bourgeoisie in Antwerp, Cornelis de Vos, who concentrated from that time onwards more on his history paintings.