Rustoleum has a toll free number you can call with questions - you can find it on the website or it's probably on the can. I'd call them, and see if you can send them those pics. That doesn't look right to me. I just painted my patio furniture with Rustoleum Oil Rubbed Bronze metallic spray paint, and it covered much better than that. I used a total of 6.5 cans for 4 chairs and a table base that are probably of similar size and maybe more surface area than your set since mine included the seats.

Did you prime first? Maybe there's a problem with the primer or lack thereof??

Anyhow, I'd call rustoleum and see if they have any suggestions -- maybe you got a bad batch of paint or something (in which case, I'd demand replacements or money back, since 13 cans of spray paint isn't cheap!)

The textured does great at adding texture but I've never
gotten it to cover well.
I found that it kind-of rubs off.
Probably not the best choice for chairs.

I spray a lot.
I just sprayed some planters w/the hammered
that turned out great.

Like lkplatow I also like the metallic line.