How to display image sent from Laravel in email message

I'm trying to display image (uploaded in my web app) transported from LARAVEL in the email message.

Picture of received email:

Currently, I achieved to show the image as an attachment of an email message, but my goal is to display the image as a cover photo of an email. The content of the email message is developed within the catalogEmail.blade.php file.

CatalogController.pho

function Sendcatalog (Request $request, $url){

 $this->validate($request, [
      'email'  =>  'required|email'

     ]);

         $language=Language::where('url', '=', $url)->first();
              if(count($language)==0){
                abort(404);
               }      
         $emailStorage= new EmailStorage;
         $emailStorage -> email = $request -> input('email');   
         $emailStorage->save();
         $catalog=Catalog::first();



           $data = array(
            'email'   =>   $request->email,
            'filename'   =>    $catalog->file_name,
            'title'   =>    $catalog->title,
            'content'   =>    $catalog->content,
            'post_thumbnail'   =>    $catalog->post_thumbnail,
            'post_thumbnail2'   =>    $catalog->post_thumbnail2,
        );




     $visitorEmail=$request->email;   
     Mail::to('[email protected]')->send(new SendCatalogInfo($data));
     Mail::to($visitorEmail)->send(new SendCatalog($data));



 return back()->with('successPost', 'You will get soon catalog on your email address');

}

Web.php

Route::post('/sendcatalog/{url}', 'CatalogController@Sendcatalog')->name('catalog.send');

SendCatalog.php (mail.php)

<?php

namespace App\Mail;

use Illuminate\Bus\Queueable;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Contracts\Queue\ShouldQueue;

class SendCatalog extends Mailable
{
    use Queueable, SerializesModels;

    /**
     * Create a new message instance.
     *
     * @return void
     */
    public function __construct($data)
    {
         $this->data = $data;
    }

    /**
     * Build the message.
     *
     * @return $this
     */
    public function build()
    {

             return $this->from('[email protected]')->subject('KAJO company')->attach(public_path('uploads/catalogs/pictures/'. $this->data['post_thumbnail2']))->view('email/catalogEmail')->with('data', $this->data);
    }
}

CatalogEmail.blade.php

<h3>Hello, catalog {{ $data['title'] }}</h3>


<p>Hello, catalog {!! $data['contnet'] !!}</p>


          <img src="{{public_path('uploads/catalogs/pictures/'.$data['post_thumbnail2'])}}"/>  
Preuzmite katalog iz linka

<a href="{{asset('storage/upload/'.$data['filename'])}}" class="btn btn-hot text-capitalize btn-xs" download>Preuzmi fajl</a>