A simple SVG of a cloud by Nicholas Humfrey. License: https://creativecommons.org/licenses/by/4.0/

cloud.svg

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<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg
   xmlns="http://www.w3.org/2000/svg"
   version="1.1"
   viewBox="0 0 297 210">
  <g>
    <path
       style="fill:#ffffff;fill-rule:evenodd;stroke:#000000;stroke-width:2.29832;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;fill-opacity:1"
       d="M 495.85938 287.3125 A 76.441848 70.727573 0 0 0 425.94531 329.91797 A 48.117955 38.924413 0 0 0 393.22656 319.53516 A 48.117955 38.924413 0 0 0 346.27344 349.95508 A 69.118492 69.049376 0 0 0 298.3418 330.6543 A 69.118492 69.049376 0 0 0 229.22461 399.70508 A 69.118492 69.049376 0 0 0 298.3418 468.75391 A 69.118492 69.049376 0 0 0 308.9707 467.93164 A 70.080866 61.140775 0 0 0 308.95117 469.35547 A 70.080866 61.140775 0 0 0 379.0332 530.49609 A 70.080866 61.140775 0 0 0 422.92578 517.01562 A 107.61606 97.316527 0 0 0 504.91016 551.29297 A 107.61606 97.316527 0 0 0 602.5918 494.81445 A 70.080866 61.140775 0 0 0 631.00586 500.06641 A 70.080866 61.140775 0 0 0 701.08789 438.92578 A 70.080866 61.140775 0 0 0 640.08594 378.30078 A 54.131486 45.191399 0 0 0 648.96289 353.50586 A 54.131486 45.191399 0 0 0 594.83008 308.31445 A 54.131486 45.191399 0 0 0 559.8418 319.02344 A 76.441848 70.727573 0 0 0 496.08398 287.3125 A 76.441848 70.727573 0 0 0 495.85938 287.3125 z "
       transform="scale(0.26458333)" />
  </g>
</svg>