Complex sentence: Koponen hasn't made a lot model work in her home country Finland because she has been busy with work in abroad, but in March 2007 she appeared in Finnish "Trendi" magazine and told about her experiences.
Split into simpler sentences: Koponen hasn't made a lot model work in her home country Finland because she has been busy with work in abroad. But in March 2007, she appeared in Finnish "Trendi"-magazine and told about her experiences.