Setting feature image/Comic

Hello and thank you for such an awesome plugin.

I have a problem: I am using Kause theme and it make the feature images bigger than they should be so, when I upload a comic as feature image, is enormous. I put them in the content and is working. The problem is that by doing it, I can’t use the left and up sidebars. Is there any way to configure this in a different way or changing the size of the comic/featured image?

Thank you.

My site: http://www.sarafratini.com

https://ww.wp.xz.cn/plugins/comic-easel/