Laravel 5.1 AWS S3 Storage, how to link images?

i am in the proccess of creating a "Content Management System" for a "start up company". I have a Post.php model in my project, the following code snippet is taken from the Create method:

        if(Request::file('display_image') != null){
        Storage::disk('s3')->put('/app/images/blog/'.$post->slug.'.jpg', file_get_contents(Request::file('display_image')));
        $bucket = Config::get('filesystems.disks.s3.bucket');
        $s3 = Storage::disk('s3');
        $command = $s3->getDriver()->getAdapter()->getClient()->getCommand('GetObject', [
            'Bucket'                     => Config::get('filesystems.disks.s3.bucket'),
            'Key'                        => '/app/images/blog/'.$post->slug.'.jpg',
            'ResponseContentDisposition' => 'attachment;'
        ]);

        $request = $s3->getDriver()->getAdapter()->getClient()->createPresignedRequest($command, '+5 minutes');

       $image_url = (string) $request->getUri();
    $post->display_image = $image_url;

The above code checks if there is a "display_image" file input in the request object.

If it finds a file it uploads it directly to AWS S3 storage. I want to save the link of the file in the Database, so i can link it later in my views.

Hence i use this piece of code:

            $request = $s3->getDriver()->getAdapter()->getClient()->createPresignedRequest($command, '+5 minutes');

       $image_url = (string) $request->getUri();
    $post->display_image = $image_url;

I get a URL, the only problem is that whenever i visit the $post->display_image URL i get a 403 permission denied. Obviously no authentication takes place when using the URL of the image.

How to solve this? I need to be able to link all my images/files from amazon S3 to the front-end interface of the website.