<div class="container my-5">

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  <div class="position-relative">

    <img src="https://mdbootstrap.com/img/new/textures/full/56.jpg" class="rounded-6 position-absolute" alt="" style="max-width: 520px; filter: blur(35px); opacity: 65%; top: 15px">

    <img src="https://mdbootstrap.com/img/new/textures/full/56.jpg" class="rounded-6 position-absolute" alt="" style="max-width: 520px;">

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  </div>

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</div>