embiggen profile userpic:

.module-userprofile .userpic img {height: 100px; width: 100px;}


put the titles of the modules in lowercase:

.module-header {text-transform: lowercase;}


fancier curves and outlines:

Delete the original line for rounding the corners, and replace with:

#header, .comment-wrapper, .module, .entry-wrapper {border: 1px solid #000000;}

#header, .comment-wrapper, .module, .entry-wrapper, .module-wrapper {border-radius:5px!important;}

.entry-title, .module-header, module-wrapper {border-top-left-radius: 5px;
border-top-right-radius: 5px;}

.comment-title {border-top-right-radius: 5px;}

.entry, .comment {border-top-right-radius: 5px; border-bottom-right-radius: 5px;}

.module-content {padding: 2px}