Wu Wei template: images too close to text

I have been using Wu Wei for this blog:

https://www.toastandfinches.com

I haven’t looked at it for a while, but something has changed, and suddenly the images are right up against the text.

Is this something I can fix? Other solutions I’ve seen on the forum have involved changing the HTML code in the theme, but I’m not really that advanced in my usage — plus I think I’d have to pay for the access.

I’m not sure how to find out what version of WordPress I’m using.

Many thanks, Susan