I bought a 120x120x120cm phototent for photographing clothing using mannequins. I already ordered 2x 5500K 150W(750W incandescent) daylight lamps, one for each side. I'm wondering if I will need more lighting due to the large size of the object. Shall I get another light placing it over or in front of the tent? If I light it from the front will it cast shadow on the backdrop? Also what camera settings shall I use? I have a Fujifilm Finepix S4300. I'm new to photographing so I would appreciate any help.