I would like to know if this is a Boeing or an Airbus. Maybe there is an Aviation Wizard out there. It's an EasyJet plane.
There's no need to be an aviation wizard - Easyjet only fly Airbus A319 and A320 aircraft.
Even if you didn't give the airline, I would guess that it is an A320. Comparing the size of the engine to the person suggests it is a narrow-body aircraft, and 737 engines have a distinctive, flattened lower surface, whereas the A320 series are more cylindrical.
According to Airfleets.net, EasyJet has a full Airbus fleet. This engine colouring indeed seems to belong to EasyJet so, yes that is an Airbus A320 family.