If you find blogger title area too big, you can reduce the padding to reduce the size of title blog as shown below in red (Layout -> edit html)
h1.title {
padding-top: 10px;
margin: 0 14px .1em;
line-height: 1.2em;
font-size: 100%;
}
#header .description {
display: block;
margin: 0 14px;
padding: 0 0 10px;
line-height: 1.4em;
font-size: 50%;
}
