I have a problem, but I don't know if it has something to be with the template or if the problem comes from K2.
When I'm trying to add a new item and I want to include an image, I've got this lightbox for the Joomla explorer:

Is this the normal look? There is any form of changing it? It's not very friendly...
Some kind of help? Thanks!

I was finally able to see it, but guess what. Form looks correctly for me. I think it may be a cache issue. Please try to open an edit link directly with this url: /blog/index.php/component/k2/item/add?tmpl=component and refresh it could of times. This will reload css files.