Back in my cylinder head

Hard to tell from that photo.
How many total miles on the engine? Oil burning is an issue with these engines.

The only way to fix it correctly is to replace the pistons and rings with the updated ones.
Or a short block, or engine...

 

On a gen3; oil consumption is usually a problem with the low tension piston rings - though the valve seals are suspect. Whomever did the head should've replaced them as a preventive measure while it was out.
Bottom-line, the oil can be coming from the bottom-up or the valve seals, top down. Since we don't know the history; you'll need to figure that out before proceeding. You can't always determine an issue by visual inspection ONLY.

Good Luck

 

Were you NOT burning oil BEFORE the head gasket replacement?
If it's leaking afterward, it's likely a seal or "O" ring was missed.

192,000 is a lot, and depending on how often you changed the oil, and how fast/hard you
drive, consumption varies.

 

Valve stem seals are usually pretty robust and takes a LOT of effort to cut or tear. None of the valve stem ends should be sharp enough to do that; otherwise they should've been wire wheeled to smooth out those burrs and sharp edges before getting pushed through the head. A very light touch of assembly grease would also help.

Just my opinion and the way I do things......

 

Using a small socket and small hammer to "tap" them on helps. But usually pressing them
is enough.
Even if they were leaking, it wouldn't be as much as the weak oil rings...

How is your driving and how much are you using between the 5000 mile oil changes?

 

and use an old seal as a strike plate - NEVER hammer directly onto a seal. Professionals can do that because they know, by experience and feel, how much force they can place on it, without damaging or deforming it. For someone that doesn't do this kind of work all the time, it's easy to 'mess it up'. The dark side of YouTube videos, where seeing it done verses doing it yourself can yield vastly different results...

 

If you drove 65mph, you'll really reduce the oil consumption. Even 70 would help.

You should check for other leaks too.
Are you 100% the gasket was in place correctly? If it's pinched, you could be leaking oil
between those two cylinders.

But I would guess it's the 80mph that is really sucking oil.

Does the engine run well?