Images with pinpress

First of all, thank you for this beautiful theme.

I have two problems: the first one is when pinpress is combined with nextgen plugin. I noticed that the thumbnail are on one row and overlap.

The second problem is that when I insert an image in a post, the image has the width of the post whatever the size I request. If I change the theme, the image has the witdh I requested.
Example on this post : https://lucidarme.me/?p=490

Thanks for your help.

Sinclair