Levocardy, Situs solitus.
Atrioventricular concordance, well balanced LV and RV, normal atriventricular valves.
Perimembranous subaortic VSD, left-to-right shunt.
Malposition of the great arteries with both vessels arising from the RV : dextroposed aorta and left-sided aortic arch, smaller pulmonary trunk with normal left PA and right PA. Both great arteries have anterograde flow without stenosis, anterograde ductus arteriosus, which means this is not a ductus-dependant condition at birth. That is the description of a double outlet right ventricle, with subaortic VSD (the so-called Fallot type).
There is also a left persistent superior vena cava draining into the enlarged coronary sinus.
Thymus is present (absence of thymus may suggest a 22q1.1 microdeletion aka DiGeorge Syndrome).
See annotated images. Some legends are in English because I have added them later to upload the case, some legends are in French as they were added during scanning. A quick translation: CIV = VSD, AP=PA. BIF = bifurcation.