I would not mix LED and CFL they have different looks and LED s are much cheaper to run. You can find a fixture you like and switch out most with LEDs, we have been slowly changing all of our halogen lighting to LEDs now that the LEDs come in higher wattages. We have 70 halogen lights in our house so I am doing 12 at a time, love the change. I like the fact that you can have a lot more lights off the same circuit too.

pls specify some details with wooden slides

Two matching mini-chandeliers could work, but you have a vent and other holes in the ceiling and would have to work around them. If you can enclose a couple of the holes, you could place each small chandelier an equal distance from the center of the ceiling as it corresponds to the center of the table. I would suggest a large, square framed mirror over the fireplace and a large tapestry or other form of wall art on the back wall. By having two chandeliers, the wall art could be seen between them instead of being blocked by a single light fixture.There is a lot of plain space, and white-painted bead board wainscoting could break up the large, plain space and bring a different texture and color to the room. A solid-color area rug inspired by a color in the wall art or tapestry could help tie the color scheme together.

no matter fan is far away from dining just add little bit extra rod to give it fall from ceiling from dining top 4' gap is enough for ceiling drop lights you can get these online or ikea hope it helps