Argh Arse, you always kill your signatures with the text and putting no borders.
If you are using that outer glow in the text, at least change the settings because default settings are ugly and noobish. ;>
And if you are going to make some mirrored text:
1. Dublicate the text.
2. Edit -> trans -> flip vert.
3. Drag the dublicated layer down a bit holding shift.
4. Change it's transparency and blending.
If you need more tips&tricks just ask.
Otherwise I think the signature is okay. I maybe would change some colours.
Oh and get some fonts. Basic fonts aren't that good. ^^