1. To change the continue reading text, add the below code to the functions.php file of the child theme –

function my_read_more_text() {
	return 'Read More';
}
add_filter('ocean_post_readmore_link_text', 'my_read_more_text' );

2. Add the below code to the Customize > Custom CSS section to style the button. Edit the code as per your need –

.blog-entry.large-entry .blog-entry-readmore a {
    background-color: #00d0ff;
    color: #fff;
}

3. Go to Dashboard > Feedback and delete the comments or delete the sample post from the Dashboard > Posts

4. I didn’t understand it clearly. Are you asking about the page title? Go to Customize > General Options> Page Title and select Background Image from the Style dropdown – upload an image.

You need to use the child theme to move it. Add all the below codes to the functions.php file of the child theme –

1 – Add the title for the pages-

function prefix_add_page_title() {
    if ( is_page() ) {
        echo get_the_title();
    }
}
add_action('ocean_before_page_entry','prefix_add_page_title'); 

2. Move breadcrumb –

function prefix_oceanwp_breadcrumb() {
    if ( is_single() || is_page() ) {
        echo do_shortcode( '[oceanwp_breadcrumb]' );
    }
}
add_action('ocean_before_content_inner','prefix_oceanwp_breadcrumb');

Now go to Customize > General Options > Page Title and select Hidden from the Style Dropdown.

I didn’t understand it clearly. Are you talking about search page? If yes, then update the above code and add is_search() in the code along with the is_page() and is_single(). Use the updated code below –

function prefix_add_page_title() {
    if ( is_page() || is_search() ) {
        echo get_the_title();
    }
}
add_action('ocean_before_page_entry','prefix_add_page_title'); 

function prefix_oceanwp_breadcrumb() {
    if ( is_single() || is_page() || is_search() ) {
        echo do_shortcode( '[oceanwp_breadcrumb]' );
    }
}
add_action('ocean_before_content_inner','prefix_oceanwp_breadcrumb');

Can you share screenshots and link to the page where you have this issue? Because I really didn’t understand it clearly.

You need to add some CSS to fix it. Did you remove the code because I didn’t see the title on the search page?