Hi,
I am a life time member of elegant themes and have worked with Divi, bloom, monarch, and other themes and plugins by elegant themes. I create images using canva (used to do things on gimp and photoshop) since it is a fast way to create images or graphics for website.
I believe I have a good grasp of the global features in divi and can create a global template for your posts.
Let me know if you are interested in hiring me and I will be glad to discuss this further if I can be the guy for the job.
Best regards,
Chris K.