Thanks for the tips Giga =)
I tried out starks instead of Whisper and I am gonna switch it to that instead. Also going to make brutalizer an earlier purchase cuz that was something i accidentally left out. I meant to have it in after Trinity. As for the life steal items in the early game; I haven't had any huge problems dieing in early game as long as I don't get too bloodthirsty and overextend my reach. Also, the potion helps alot at that point and you can get maybe one or two more if you are really having trouble. I guess you could squeeze in the lifesteal early, but I usually am trying to get Trinity as fast as possible. Also, the added HP from Phage works well at keeping you alive for a little longer.
As far as skills go, having two stances doesn't really stop you from keeping monkeys agility maxed out, but if you are in a position where you need to be dealing more damage you could start sneaking in some points to Tiger, although it does some pretty ****py damage early on in the game, which is why i like to start utilizing it later on, when the damage multiplier really packs a punch. Having Turtle and Bear maxed out asap ensures that you have maximum survivability untill you can start doing some real work.

Again, thanks for the feedback =)

Having only two stances available for that long really puts a dent in your stance dancing. To be truly effective, I think you need at least three. Otherwise, seems OK. I would recommend getting some cooldown reduction with Youmuu's or at least Brutalizer earlier on. Also, since flat ArP is calculated before percentage, Last Whisper is only better than Stark's Fervor on champs who are stacking armor. You have 37 in your build, so Last Whisper is better than Stark's against enemies with armor higher than about 87. Even if they are higher than 87, Stark's gives you many more benefits besides ArP with the same Attack Speed boost as well as the aura that benefits your team. I'd say Last Whisper is only worth it against two or more enemies stacking armor, but it's your build.

A couple more things; having lifesteal items with Udyr really helps in the laning phase. The passive from Turtle Stance is nice, but with just a Vampiric Scepter you can heal to full pretty fast which is great against harassment. Lastly, Bear Stance can be a great first ability if you want to pick up first blood. If you're laning with someone competent, try it.