I've posted these pictures: https://imgur.com/a/cf5LVkf
There are 4 pictures in total showing 2 pairs of jeans.

I bought these jeans when I was younger. I recently dug them out of my closet and tried them on. As you can see, they ride really low on me, well below my natural waistline. Even my friends and family commented on how low they sit. The first pair is super low in the front, but it comes up higher in the back, which I think is a good thing. So this way, I don't have to worry about the jeans coming down too far when I'm sitting down.
But for the second pair, they don't provide much coverage in the back, which is why I think they might be too low. But on the other hand, they fit me well enough that they should stay in place even when I'm being active. So if you saw me wearing these, would you think it looks indecent? And would you wonder whether I'm wearing undergarments underneath?

And overall, how do these two pairs of jeans look on me?