Hey Aksu,
firstly, thank you for the purchase, and my apologies for the slow reply!
I will cover the issues in the same order:
1). To increase the font size of the “About” heading, you can insert this code into the “Style: Add Custom CSS” tab of the Theme Options panel:
#page-holder-11 .page-title h2 a { font-size: 40px; }
replacing the “40” with the size you need. I see that you’ve already added a line-height declaration in the same manner, so please let me know if I understood the question correctly!
2). Please download this latest version of the shortcodes archive, unzip it, and upload the resulting file via FTP into the following folder inside your WordPress install:
/wp-content/plugins/shortcodes/lib/
replacing the existing file; alternatively (if you don’t want to upload anything :), you can try adding a SPACER shortcode with zero height after the previous row of columns, which should have the same effect.
3). You can insert an image into the footer using the default WordPress “text” widget, dragging it into the “Footer” widget are in the “Appearance -> Widgets” admin section, and inserting the needed image HTML tag. Alternatively, you can use one of the third-party image widget plugins, e.g. this one, yet I would recommend the first solution since it avoids burdening the website with additional PHP code associated with the plugin.
Please let me know if you face troubles with any of the above, or in case you have other questions about the theme!
Sincerely,
Andrii / Satori Studio