A recent topic you created asking for suggestions on what kind of design you implemented was possibly missed by yourself when I replied. I would advise you take a look and possibly the brief reply I suggested might help and enduce other ideas to give the style a more appropriate feel to it.
It's not that the style is dull. It's just not relevant to the theme of your site. Colours were possibly implemented incorrectly which gives off that inconsistent feeling which is why comments are stated as "bland", "dull" etc.
Colour usage is important and I think you should concerntrate with that first and make this your first priority. Afterwhich, Design the appropriate relevant images that will compliment the theme and style colours.
Keeping colour usage and consistency in mind and you won't go wrong.
