Yes. Of Course.! You can use Text ,HTML & Embedding block to embed the Logo or picture.You16 may also embed a logo or picture directly from any url.
In case of any Image, you have to convert the Image into HTML code which you can directly convert online for free. For emneding using URL please find below syntax :
<p style="text-align:center;"><img src="url of yur image source" alt="Logo" width="50%"> </p>
You can modify the size as per your requirement.