Laravel 5.8 - my code is showing data array instead of image

i'm habving truble showing uploaded images from data base.

this is what i'm getting :

[{"id":4,"model_type":"App\Asset","model_id":16,"collection_name":"photos","name":"5d83621e459eb_le15","file_name":"5d83621e459eb_le15.jpg","mime_type":"image/jpeg","disk":"public","size":40804,"manipulations":[],"custom_properties":{"generated_conversions":{"thumb":true}},"responsive_images":[],"order_column":4,"created_at":"2019-09-19 11:11:05","updated_at":"2019-09-19 11:11:06"}]

view.blade.php

<div class="panel-body">

                    <div>
                        <h2></h2>
                        <span class="label label-info label-many">   </span>             
                       <div>   </div>  
                       <br>
                        <p></p>
                        <h5><strong></strong></h5>
                        <p> </p>              
                        <span class="label label-success label-many"> : </span>

                        <span class="label label-default label-many"> : {!! $asset->budget !!}</span>

                        <span class="label label-warning label-many"> : {!! $asset->nbAssociers !!}</span>
                         <br> 
                         <br>               
                        <strong> : </strong>
                        <p></p>                
                        <br>
                        <a style="margin-top:20px;" class="btn btn-default" href="">
                            
                        </a>
                    </div>

                </div>

---

Model

    namespace App;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use Spatie\MediaLibrary\HasMedia\HasMedia;
use Spatie\MediaLibrary\HasMedia\HasMediaTrait;
use Spatie\MediaLibrary\Models\Media;
use Laravel\Scout\Searchable;

class Asset extends Model implements HasMedia
{
    use SoftDeletes, HasMediaTrait;
    use Searchable;

    public $table = 'assets';

    protected $appends = [
        'photos',
    ];

    protected $dates = [
        'created_at',
        'updated_at',
        'deleted_at',
    ];

    protected $fillable = [
        'name',
        'description',
        'status_id',
        'created_at',
        'updated_at',
        'deleted_at',
        'category_id',
        'location_id',
        'date',
        'budget',
        'nbAssociers',
        'assigned_to_id',
    ];

    public static function boot()
    {
        parent::boot();
        Asset::observe(new \App\Observers\AssetsHistoryObserver);
    }

    public function registerMediaConversions(Media $media = null)
    {
        $this->addMediaConversion('thumb')->width(50)->height(50);
    }

    public function assetsHistories()
    {
        return $this->hasMany(AssetsHistory::class, 'asset_id', 'id');
    }

    public function category()
    {
        return $this->belongsTo(AssetCategory::class, 'category_id');
    }

    public function getphotosAttribute()
    {
        return $this->getMedia('photos');
    }

    public function status()
    {
        return $this->belongsTo(AssetStatus::class, 'status_id');
    }

    public function location()
    {
        return $this->belongsTo(AssetLocation::class, 'location_id');
    }

    public function assigned_to()
    {
        return $this->belongsTo(User::class, 'assigned_to_id');
    }

---

and i'm using in my controller

use MediaUploadingTrait;

via Chebli Mohamed