What are your settings intensity of the lightsource how far is the object behind the supposed translucent object what are the rendersettings, is at a Blinn/Phong Lambert etc. show a render .


As a general remark the default maya shadertranslucency aren't that good when it comes to reall life SSS, for that you need mental ray's SSS -shaders


Oh and it gets a tad annoying when people ask questions like;
"I want to make good renders for my model that is very nice lit , but I don't see the object behind the main thing how do i make a nice render of the second object?"

And don't elaborate with pictures and settings, I sometimes have the feeling that people who ask stuff like this don't know what they are doing don't understand anything about the applicationthey have open and basically try to make stuff that's way over their heads.

What i want to say to these people is valliant efforts but try starting out with a bouncing ball (don't laugh a good bouncing ball is actually very hard to achieve with stretch and squash to make it believeable)and some simple tutorials trust me start with little stuff and work your way up.