Vantage Theme – Uneven images

Hello everyone! Just a quick question… When I used pagebuilder + visual editor to set up my buddies site for his company I ran into a problem…

http://oneplacecostarica.com/marcas/

if you go to that link you will see that the images are uneven… as you might imagine, I would like to know how to make both the images be on an even line.

Please let me know what the problem could be. Thanks a lot everyone and sorry in advance if this is a super newbie easy question. Appreciate the help!

-Ian