Monsters:
Dark Blade
Sasuke Samurai #4
Silpheed
Winged Kuriboh L.V. 10
Harpie Lady Sisters
Swift Birdman Joe
Birdface
Diciple of the Forbidden Spell
Ancient Gear Cannon
Roc From the Valley of Haze
Lady Ninja Yae
Flying Kamakiri #1
Slate Warrior
Sonic Shooter
Harpie's Pet Baby Dragon
Mirage Dragon
Harpie Lady 3
Raging Flame Sprite
Harpy Lady 2
Simorgh, Bird of Divinity
Flying Kamakiri#1
Harpie Lady Sisters
Sonic Duck


Spells:
Trancendant Wings
Card Destruction
Elegant Egotist
Reload
Heavy Storm
Mystical Space Typhoon
Lightning Vortex
Harpie's Hunting Ground
Harpies' Hunting Ground
Harpie's Hunting Ground


Traps:
Sakuretsu Armor
Magic Jammer
Hysteric Party
Ninjitsu Art of Transformation
Aqua Chorus
Dust Tornado
Reckless Greed
Icarus Attack
Call of the Haunted

1) What is the theme of the deck?
2) Ask yourself what cards support said theme and what cards don't
3) Be prepared to trade a lot and lose a lot of money buying boosters and such.
4) Why do you have Winged Kuriboh Lv 10 and Trancendant Wings if you don't have a Winged Kuriboh?
5) I see that you just bought a starter deck and threw in random cards.

I think you should focus on one theme for your deck (looks like you are using wind) so you should focus on a deck based on wind. Some suggestions would be......

1. use some searchers to thin your deck like 3 flying kamakari #1 to get your other wind type monster out.

2. possibly try to make a sasuke samurai or scared phoenix deck since they are both competitive wind deck.

3. use staple cards like graceful charity and prematurial burial (along others) to make this deck more competitive.

I agree with Monkeyman666 on taking out the LV10 and Trancendent Wings as it is junk without Winged Kuriboh. You need to focus on just one theme because this deck is all over the place. If you need an example of a deck focused on a single theme check out my Burn and Machine decks. While they both need fixing they concentrate on and burn and machines respectifully. Please return the favor and ref my decks.