Why won't the car start when I turn on the ignition?

I changed my ignition, but after I did that. I go to turn on the vehicle but I get nothing. What else was I supposed to change? Ignition switch perhaps?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0