Was consideration or a valid substitute present to support the agreement?

There was consideration because the parties had a bargained$-$for$-$exchange of promises $($i$.$e$.$ to pay $$700$ for studio services$).$

There was no consideration or valid substitute for consideration present to support the agreement.

There was a valid substitute for consideration because Dominique made a promise and Willy relied on that promise to his detriment.

There was consideration because Willy owed Dominique studio services in exchange for the work he did for Willy in the past.