Often a rubber hose (slobber tube) is put on the crank vent to keep it from clogging the radiator. Check to see if you have one and if it's routed to the right side although most crank vents in a DP are on the left. IF this is your problem then I would reroute it to just in front of the exhaust so the exhaust blows it further out on the left or turn it downward so it goes under the car. I have my doubts this is your problem because it's on the right of the car unless you have a side radiator.
*Looks like you do have a side radiator and I doubt you have a slobber tube. The air from the radiator fan may be blowing the crankcase mist to the right side of your car. I would add 6' of rubber hose to the vent and have it come out in front of the exhaust.