Dear Sandy,
Sorry to hear that you’re finding it difficult. Here is the tip.
This tutorial will tell you about how to customize the header : https://www.styledthemes.com/pure-simple-pro-setup/315-customize-your-header
1. The image is Image widget of Jetpack and title of widget is hidden using Remove Widget Title plugin. It is .
2. Welcome to pure & Simple is call to action text widget with following title and text
Title : WELCOME to PURE & SIMPLE
Text :
Explore my new WordPress theme called Pure & Simple...a theme built for professional bloggers with beautiful subtle features that gives you more when you are serious about your content! Unlimited colours, several blog styles, Jetpack ready with a gorgeous portfolio, mobile responsive...and much more!
3. The tilted image with different layout is also using JetPack image widget and widget position is Top 1 .
4. The other 4 featured boxes are Featured top 1 to Featured top 4 widget . And the icon are generated using font awesome and font awesome shortcode plugin. Here is the tutorial for it : https://www.styledthemes.com/pure-simple-pro-setup/330-using-icons
Here is the sample code being used there in demo site :
[fa type="desktop"]Mobile Responsive
Pure & Simple is mobile responsive for you to enjoy viewing your website in your favorite phone or tablet.
I hope that will make it clear.