Change the yellow colours, it really hurts my eyes when I look at your signature.
(SoulStealer9875, Send Message, 19:26, 20 August 2011 (UTC))
I would also suggest a signature like mine, perhaps like:
<div style="border-top: 1px solid #AAA; color:#000000; font-size:10px">([[User:Aboy5643|Aboy5643]], [http://www.roblox.com/My/PrivateMessage.aspx?RecipientID=YOUR_USER_ID_HERE! Send Message], {{subst:timestamp}})</div>
(SoulStealer9875, Send Message, 19:28, 20 August 2011 (UTC))