How did you try to put it into your signature?
Sent from my Samsung Galaxy S3
Saved it from URL to CPU. Added wording. Upoaded as the size you see in the attachment.
And yeah, maybe needs shrinking. Ill have a go but I'm not at all that computer savvy. Especially when it comes to things like this.
EDIT. OK, tried resizing on paint and that didn't work. Thats the best I can do. If anyone can help than I will have a happy face.