Sig is too blocky.

Needs to be more landscape.

Even slight cropping can help

[IMG]http://i.imgur.com/KgBN7Ch.gif[/IMG]

And then you can get really crazy

[IMG]http://i.imgur.com/1sMR0Z9.gif[/IMG]

and

[IMG]http://i.imgur.com/vvblbff.gif[/IMG]

Keep it slight. You want to preserve the image. 

[IMG]http://i.imgur.com/YbOQVar.gif[/IMG]

Like so

[IMG]http://i.imgur.com/FCM8Lim.gif[/IMG]

...

[IMG]http://i.imgur.com/smqGrf9.gif[/IMG]