Threat Signal cover - need advice to improve the lead tone.

[Wusong]

Hi guys, this is my first post here. I just came Singapore few months ago.
This is the song Through My Eyes - Threat Signal covered by me.
Some parts of the song seem quite hard for me, so dont comment abt my playing
I used Overloud TH2 for the lead guitar but can not get the sound close to original version. Could anyone give some hints for that?

Thanks if anyone can add vocals for this \m/

Listen online and download:
http://soundcloud.com/wusong/through-my-eyes-v1
http://www.mediafire.com/?wdn008kggz11qyg

Thanks for viewing.