There's nothing wrong with a right elbow pointing straight down, in fact it's a great position to get to. Even in modern swing techniques, it's remains a great position to be in.
Here's a pic of a US Tour Pro I had in my library of pics. If he can play the PGA Tour with his elbow pointing straight down (or more or less), it's good enough for me! it's one ofthe points in the swing we look at when we look at any golf swing.
Notice also his right elbow is within his body width???? Very important, if your right elbow is outside your body with, youhave a problem!
It's the David Leadbetter tip about feeling as if you're holding a tray on the right hand at the top ofthe swing. You couldn't hold a tray if your right forearm matches your spine angle. No way in hell!
Your problem is that your right forearm isn't upright, it's directed inwards towards the body and that's forcing your club to point left.
A final point: the pro picture you're comparing to isn't the best to use as a comparison. He's got a l-o-n-g swing and the club is pointing WAY right ...