Width is good. Depth is fine. FWIW, speaking from having owned an auto shop for a decade and seen what every other shop in the area including the dealers are doing, when your car isn't in your own hands, everyone is supporting it off the pinch weld, not off the area adjacent to the pinch weld. Everyone is using flat pads on shop lifts. I have never seen any damage from it (which is why I was willing to do it too back in the day). Don't get me wrong, I've absolutely seen pinch welds damaged from jacking/supporting, but it was always from boyfriend's-sister's-cousin's-friend-bubba who was doing something REALLY stupid like using a bottle jack (small contact area) or trying to support a pinch weld on an axle stand. So to to me it doesn't matter if a pinch weld adapter is carrying the load on the bottom of the slot or on the top of the pad. What I don't want to see is anything that localizes all the force into a small spot or something like a flat steel pad where the pinch weld isn't being given any additional stability and can collapse.
On those marks, the aluminum adapters I linked to are fine.