Hardly much description in your guide, with no description at all on why the items you chose are any good. In this case, they aren't. Trinity and Banshee's are two items that no Riven should carry these days. I've said it again and again, there are people who've done the math and proved that Infinity Edge gives you more dps overall for a lower price, and there are other items out there that do the same thing as Trinity and do it better. Banshee is just not a good defensive item for Riven, period. Other than its passive, it's a subpar item, and its benefits are halved by the fact that Riven doesn't use mana.

I also find the lack of Frozen Mallet, a core item for Riven, to be disturbing. For all the trouble you've gone to include Banshee's, you could have included a vastly more useful item like the Mallet in this build.

You, like others before you, have chosen to max Q first, and Ki Burst last. I either assume that you've never maxxed Ki Burst first, or never built up the proper AD to see results with maxxing Ki Burst first. Either way, I'd encourage you to experiment more before you spam Q in your title, as you've given little description there as well.

Runes, Masteries, and Summoner Spells aren't bad, and I like the discussion of Summoner Spells, but other than that, you're extremely lacking in much of a description at all. I feel this build needs quite a bit of work before it can be considered good.