1 there is a space between the h3 and image
This is just the margine on h3 tags and paragraphs. It can be changed with CSS customization, if you wish.
2 the h3 in the third column is blue for some reason
I do not see this any more on your site; so it looks like you’ve figured it out? Or abandoned linking the images? But I’m assuming you opened an anchor tag in the second column, but then didn’t close it. So, the anchor tag carried over to content of the third column.