Ears and wrinkles

The last week or two I've noticed that Riley's right ear is cocked back, but the other one isn't. At first I thought it was like an expression, like he did that when he was curious or something. But it's all the time. See Riley here:

(cam: Panasonic Lumix FZ-1)

But then several days ago I noticed that if you look at the back of his head, the ear that is cocked has developed a fold in the back of the ear, which is why the ear flops back more.

Now what I'm wondering is, will he aways have one cocked ear, will it fix itself, or will the other one develop the same fold, too, leading to two "cocked" ears. It's so funny now he's like, uneven. And it's all the time. I don't care, I just think it's interesting.

Still no forehead wrinkles, but sometimes depending on the light it seems that the hairs on his forhead reflect light in such a way that it looks like forehead wrinkles are starting. But the skin is still tight and flat.

But he is getting other wrinkes, or more specifically: rolls. He's had a roll under his chain for a while, now he's got rolls behind his neck, and when he stands on his hind legs you can see three rolls of skin of his back under where his tail curls.

My breeder told me that she often breeds w/ a certain other kennel, and as you can see, those pugs are quite wrinkly in the body:

(I don't have the pedigree in front of me right now, I am not at all claiming that Riley is related to the dog in that picture, not at all.)