So, I started messing around.

Here's the result, against a harmonious gradient background:
You can see the following changes I made:
- Instead of creating the look of a glossy button, I simplified the effect by using a simple inner emboss.
- I changed the font to Bauhaus93 because it's a more stylized font than PL uses, yet the Bauhaus93 font is very readable, even when this logo is viewed at 2% magnification. Also, I wanted a very heavy weight font that would not be overwhelmed by the embossing effect.
- I added a simple inner emboss to the letters.
- I adjusted the gradient on the colour bars to more clearly express light coming from above.
- I applied a Curves adjustment to the colour bars, using Lab mode to reduce the gamma in order to make the colours less intense and distracting.