Siggy help

How do i make my sig larger becuz i resized from 350x300 to 500x400 and it looks exactly the same... Plz help

Edit:TY nabdab ill try it out

Edit:nabdab uh photobucket didnt help i guess i can live with a small sig xD

upload on photobucket its better there

i wouldnt recommend resizing your sigs, they get distorted