Rich One is the most simple and bold free WordPress multi-purpose theme from RichWP. The design is just straightforward enough for those who’d like to display primarily the images. You can use it for a heavy-image blog and portfolio without complicated setup and customization.
To wrap up, I want to introduce this theme for a fresher in this field as it's user-friendly and takes little time to customize. Moreover, it has enough features and some interesting ones like a sticky header, related posts, and many special widget areas. The design is straightforward and clean, which is another strength of RichOne.
However, this free WordPress theme hasn't been optimized well for SEO. Plus, if you are a desirable user and want to have more things like custom layout, custom background or typography, you may be disappointed a bit.