If you are wondering how to get curvy boxes without Photoshop and nice looking page layouts with columns, then read on.

Plus! and CSS3 means you can design with code!

With Plus! you can modify your theme style sheet. Used judiciously, you can add a little bit of individuality to an article or to your whole theme.
Moreover with CSS3, you can do things with gradients, transitions and curves, and stripe tables, without going anywhere near Photoshop nor or a theme template.
Give Plus! a go. Just £24 for the first year.

To achieve the above, you need a little bit of css:

#pic-container {
background: #E3E3E3;
font: normal normal normal 12px/1.6em helvetica, arial, sans-serif; margin: auto;
padding: 12px;
width: 600px;
-moz-border-radius: 18px;
border-radius: 18px;}

#pic-container p {
-moz-column-count: 2;
-moz-column-gap: 20px;
-webkit-column-count: 2;
-webkit-column-gap: 20px;
column-count: 2;
column-gap: 20px;}

Just place the above code in the custom css editor, modify and then wrap your image in a div id called pic-container and stick the caption in a paragraph block. Older browsers may not show off your hard work, but should degrade ‘gracefully’.
Google ‘CSS3 generator’ for a head start!