Rigth? If you want we can make 1v1 riven.

I cant see how people can vote this +. The dorans shield is a much better starting item for Riven then the blade, she dont gets to stand and smash the minions to get her hp up, the hp reg from shield will help much more and u can just run in for the last hits. You build for just pure AD on the items, no defense at all. u lack the hp / armor / magic res. With this build you WILL get focused in the team fights and u WIll die.
Also for the skills u dont go "R,E,Q,Q,Q,W,R,E,W,Q,Q,Q" u start of with R like u say , but u dont release it until u got a secured kill and that is when they got low hp, the less hp the more dmg. when u use ur Q u w8 shortly after for the auto attack which resets every time u use it, and do that all the 3 times. ur W does most of the dmg and also stuns for 0.5 sec so use that if u go against lets say katarina, just interrupt her ulti. so u should activate R then go E( to get in if u have to) then Q - auto attack - q - auto attack - W(unless u gotta interrupt something like i said) and then Q again and execute with R again.
I dont understand why u have specced improved teleport? you dont even got it as a summoner spell. Then the ignite specc is useless, AP does nothing for riven. u specc attackspeed/more dmg to minions instead of armor penetration.
All I really have to say about this guide is LOL.