Hi, this is more a template issue.
If you use Firefox, then get Firebug extension to be able to view the html/css of the pages.
You need to add some bottom padding to the catItemImaage, i think but the look of the screen shot.
You can then also change the font/colour used to.
All of these can be done through the k2.css file.
For more information on styling K2, then please check our guides at K2Joom.com and then let us know if you need further advise.
Let us know if you have further questions.
Simon
K2Joom.com