Picture Walls

I am obsessed with picture walls. Everything about them is so stinking cute and they automatically dress up an otherwise un-put-together room. I made one attempt, that is currently over my dining room table. It's a collage of pictures that I love from my travels. The problem? They are all crooked! Every time someone opens or shuts the front door things move around and I have given up on having them securely nailed up. What am I doing wrong? Please educate me professional picture hangers of the world!Additionally, there are two other things that bug me about this - 1. the awful yellow color of my walls and 2. the phone jack in the wall - who even has a house phone anymore?! My landlord will never take it away.

I'm finally at a place in my life where I don't just want cheap rent and a place to put my bed and laptop - I want a home that I really enjoy and that reflects who I am.

I have this second wall of pictures that is not very dense but I enjoy the completely mis-matched nature of the pictures. I have some other pictures and I am thinking of adding them to this wall (you can't tell, put it's recessed from the rest of the room a little) and having that be a picture wall.

I need some major interior design help, that's for sure. What do you think?

xoxo