Build 1 is good, rest is meh.

Brute Force > Demolitionist > Havoc > Mental Force

Try to list some alternative runes.

Warding section please, you write you ask your jungler but a Sight Ward is only 75 gold... You can buy it yourself ;) You should also note that your opponent mid might have warded, so you can be spotted even earlier.

Match up section needs expansion, and alphabetized would be nice.

That's it, my ratings:

Appearance: 7/10
Cheat Sheet: 7/10
Contents: 6/10

6,7 it is ^^

Very nice guide, good job!

Build order on first two is wonky

Awesome build. I love the pictures, which makes it quite in depth. You've outlined how to play her from a ranked POV and you've got some match=ups as well. I think a bit more variety in colour will complete this through and through. +1!

Nice guide a lot of details ;))

In my opinion you can't go totall glass cannon - I like easy burst that Rabadon's gives you but it works only in 1v1 early fight. Later to survive larger battles you need ssome hp/defense and you can not have enough time to build it as second item. I tried going Rabadon's first - didn't liked it.
Also thanks for your downvote - you explanation to it was more than enough. In future I will try to take your builds as an example how to make a guide because your builds looks so perfect that you must be a guides expert so you can downvote other people guides "just like that" because you know what it means to spent a lot of time and effort to make nice, full guide. Thanks man! You are great!

try going for rabadons before rylais, it will allow her to get the farm she needs to finish her build and farm wraiths quickly as well as get a few early kills against her opponent

Wow - that's a quick reply! I'm impressed.
And thanks for in depth analysis also with grammar correction. I know I'm bad at it. Have to revise my "a" and "and" use :)
I corrected grammar mistakes you mentioned - shame on me :P
Also corrected runes, BBCode.
Masteries - never thought about them like that cause even guides of pro players show that you should take 3 points in Mental Force . But I will try them - it should help to last hit.
As for Moonlight Cascade - there is no such skill. You meant probably Crescent Strike (Q)?. And I think I added comment to it: "•Later when you learn how to use it you will be able to hit enemy champion and farm at the same time - just put yourself in proper position to that."

As for the rest - tips, like warding, mid and late game, more matchups - I will add mid and late game, more matchups soon (next week).

in the end - I'm verry happy you liked my guide. Thanks to you I may correct and improve it to not give other readers any excuse to downvote my guide :)
THANK YOU A LOT!
Regards!

Ok, we have quite some work to do here, so let's get this list started. Free of charge, you also get grammatical fixes:

• I think the word you are looking for in your burst build is viable, not valiable. Also, wiki links and headers don't work well together so well for some reason, and it is epic, not epick, and powerful, not powerfull. Yes, English grammar makes no sense. I have no idea how I learned it, I just did.
  
  
• You should never take Mental Force unless your abilities have scalings over 100% or you last hit with them, like Veigar, for example. Otherwise, take Brute Force or Butcher , they help you last hit.
  
  
• Your runes say top burst when you meant mid burst, and your mid burst runes are your top burst. The descriptions are fine, but the rune builder is wrong. As for the runes themselves, well, no complaints.
  
  
• You have some messed up BBcoding in the summoner spell section. Also, it's millions, not milliones. Also, it's enter a teamfight, not enter teamfight. I know your pain, Serbian grammar and English grammar mix even worse than Polish grammar and English grammar. While I personally think Heal is better for baiting in an idiotic enemy to a tower, the summoner spells are ok.
  
  
• I REALLY like your skills section. The pictures are a really nice touch. You should probably mention how Moonlight Cascade is great for harassment, and that you can also last hit a minion and harass at the same time with this. You only need to use a and an a lot more, that is the only real problem in this guide as far as grammar goes. You do its so much, I couldn't possibly correct every instance of that error within reasonable time.
  
  
• Your items seem ok. Never played enough Diana to criticise this too well, but the make sense.
  
  
• I pity the fool who jungles Master Yi with a lane Diana on his team. Good explanation on the teamfights and the early game, but you could use some other tips, like warding, mid and late game, more matchups, etc. Also, this part of the guide needs some aesthetic improvement, it just looks ugly. Find some good templates and use them. As for grammar, I have no idea what "Call you enemy jungler" means. Did you mean "Call your jungler"? Also, you wrote frist, when you needed first.
  

So, conclusion. The guide is pretty good, but needs better grammar, some aesthetic imrovement, and more information on Diana's gameplay. Still, this is quite a good guide who went unnoticed due to MOBAfire being screwy, and deserves a +1 from me.