As Olim Chadashim, we are planning to marry in Eretz Yisrael and I would like to have a Ketubah commissioned by a Jewish artist. I heard that the Rabbanut will issue the Ketubah. Are we allowed to have a second copy (the artists copy) to display in our future home.

There is no problem but you should consult the Rabbi who is Mesader Kiddushin. The Ketuba has to be copied word for word. Rabbi Binyamin Bamberger