You can use Tailor to "transfer" morphs from figures to clothing or even clothing to clothing. Actually what you are doing is creating a morph in the clothing item that has the same effect as a morph in the character. Morph Manager will copy morphs only between items that use the same mesh. Generally, it cannot be used to copy morphs from character to clothing, because the meshes are different. How clothing looks in a render is generally dependant on lighting and textures. There are a lot of good textures for clothing that are free. Also, with P5/P6 you have the materials room to create your own textures. A good mesh that poses well always helps, though.