some help with a starting ideea

hello
I have to make a responsive site from a .psd file. the site must be easy to administrate. In html is easy to make but in wordpress I don`t have so much expiriance. If you please can give me an idea about how to start or a small work-plan it would be nice 🙂
here is a link to o picture about site must look like. thx !
http://www.girlshare.ro/33453548.7