Go to post when clicking on picture

Sure,

You manually have to edit your post template. Have a look at this link: https://www.ads-software.com/support/topic/image-link-to-post-permalink

Or you may want to create a function which will overwrite everything within single posts:

function myImgreplacement_permalink($content) {
	$format = get_post_format();
	$searchfor = '/(<img[^>]*\/>)/';
	$replacewith = '<a href=".get_permalink().'">$1</a>';

	if (is_single() === FALSE AND $format == 'image') {
		$content = preg_replace($searchfor, $replacewith, $content, 1);
	}
	return $content;
}
add_filter('the_content', 'myImgreplacement');

Credit – throwingacbrick.com

hi, no need to edit code

just goto admin >> pages >> find here your frontpage and edit it.

here you had added images. click on image, you will find edit link on it.

edit it image and popup will display now. in it you will find link option.

add your choice of link to image and update.