Delicate is a free professional WordPress theme. It will let you adjust Color scheme, display header image or Page-based Slideshow, choose custom Slideshow effects and control Transition speed.
The theme is clean and minimal, in two columns and fixed width. It supports custom header, custom background, threaded comments, sticky post, localization.
The slideshow works on a page-based functionality. While working with Slideshow consider pages as slides.
To add more slides you should login to your wp-admin area and go to Pages -> Add New. Enter page title and content, then on the right sidebar you can find Featured Image. Click “Set featured image” link and attach proper image you’d like to use for slideshow (note that the image dimensions should not be less than 970×225 pixels)
Upload image and click “Use as Featured” link.
To upload a custom header, open the Custom Header section. Go to Appearance -> Header and use Upload Image tool.