Add image into custom checkbox

I've made custom checkbox, here is what i've made so far, but what I need is something like this, where there is also text and one image (not icon/fa-fa icon) in the center of the checkbox. Did u know how to achieve it? Here is the code from snippet:

css:

div {
  display: inline-block;
}

input[type="checkbox"][id^="cb"] {
  display: none;
}

label {
    display: block;
    position: relative;
    cursor: pointer;
    height: 120px;
    outline: 1px solid white;
    width: 120px;
}

label:before {
  background-color: red;
  color: white;
  display: block;
  position: absolute;
  width: 20px;
  height: 20px;
  top: 1px;
  left: 1px;
  text-align: center;
  line-height: 20px;
  transition-duration: 0.4s;
}

label img {
  height: 100%;
  width: 100%;
}

:checked + label {
  border-color: red;
}

:checked + label:before {
  content: "✓";
  background-color: red;
  outline: 1px solid red;
  z-index: 99;
}

:checked + label img {
    z-index: -1;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    height: 95%;
    width: 95%;
    outline: 3px solid red;
}

html:

<div>
  <div><input type="checkbox" id="cb1" />
    <label for="cb1"><img src="http://lorempixel.com/103/103" /></label>
  </div>&nbsp;
  <div><input type="checkbox" id="cb2" />
    <label for="cb2"><img src="http://lorempixel.com/102/102" /></label>
  </div>
</div>

Thanks in advance for your help.