OK Rahul, your going to need to be more specific than this. Can you send pictures of the room this table is going to be in - does this room connect with a kitchen, or hallway? Photos of those rooms too please, and, what does your dishware look like that is going to sit on this table when you have company over? Photo of that as well. then we get into patterns, colours, textures, dimension, theme, style etc. May I suggest you find an interesting pattern that you must have - this will depict the intricate detail of the pattern needed - check out Sicis.com excellent italian mosaic tile company that will help to inspire your vision for your table. Then google "black and white abstract shapes-patterns", this will help you choose what shapes, patterns you want in your mosaic. Some photos to show you how extensive this is - and you need to give more guidance as to your personal style and preferences before we can help you further. Good Luck! Yes the third image is actually mosaic tile - from Sicis.com

Additional photos

The recommended fit around a DR table is 24" larger on all sides for the chairs. You won't have that on the 6'8" side. I'm thinking the rug is going to be too small for the room 8x10 or even 9x12 would have been a better choice.

About 2 ft in from the walls and about 4 ft apart and you will need to know where your table will go and you will need a box there for a chandelier make sure the pot lights are on a separate switch and on dimmer