HaOanh-
It is only my opinion that Paso Doble should never had been included as an International Latin competition dance. All the competion dances, Am style or Int'l style, are danced in social setting except Paso Doble.
Having said that, I also like to point out that Paso Doble was danced in competitions perhaps more like a showdance where choreographic expression is mostly emphasized. I have observed many competition tapes and each pair of competitors had they own routine and looked totally different from the others. Therefore, you are not likely to find standardized varietions to suit your need. These varietions can only be used as optional or reference to your own routine, and use them to develope your own set of routine, so speak.
As for armstyle, take a bath towel use it as a cape. Standing in front of a large mirror, pretending you were a bullfighter, moving the towel whichever way you can as in bull fighting( you need to have prenty of imagination), the move that look great, keep it, the ones that doesn't, skip it. Just don't try this in front of the public. ;-p
If you are a lady, that will be totally another subject.