<font color=navy>I like your P. Jasmine in your siggy.
When you're asking if too big, are you talking about the link in your post? If you were to make it a signature picture, then yes, it's too big. You would need to use the following code:
<img width=200 src=http://www.engin.umd.umich.edu/~rberry/al_50.jpg>