Progress but, It still looks flat, and the texture isn't really helping.
I'm trying to make it in LINK to the PAST perspective but I don't want it to show the top of the plank because there will be other wall-parts ontop of it.

I love the style. To be totally honest, wood planks don't much need depth, and in fact you may want to avoid putting much depth or it may look strange to have a character walking on top of them. These look fine, though.

I really like the texture you've put into them, it helped. How would I make them for the walls though? I've forgotten to mention that these are wall tiles, not floor. So adding depth for walls would still be bad?

Yea, I honestly feel the black is dominating over the texture itself. Should make it blend more. I'll try making it horizontal but I feel that there should be atleast some tiles that are vertical planks.

Theres 2 reasons I could think of to make the planks vertical.  First, wooden houses are just typically built that way:
http://https://www.google.com/search?q=log+cabin&biw=1280&bih=899&source=lnms&tbm=isch&sa=X&ei=W6XOVNiLJ8PgoASCvIG4Cw&ved=0CAYQ_AUoAQ
Also, its easier to show the depth of the perspective that way.  Heres a quick diagram of how wall perspective works in zelda



As you can see the horizontal parts of the wall are pretty easy and dont require many tiles.  The vertical parts are a little trickier.

Model 'A' is the most realistic.  Having the vertical lines the most diagonal in the corners and gradually shifting towards being straight in the middle of the room.  Obviously this requires a lot of tiles, and gets messy if you want rooms of different sizes.

'B' has all the vertical tiled elements as straight lines.  This is the easiest solution.  You can see that the bricks in the lttp example I linked to does this method.

If the planks dont need to tile, you can have them taper towards the bottom to show perspective, like in this minish cap example
http://nintendo3dsdaily.com/wp-content/uploads/2013/12/Midorahousescreen.png
but, then you can't have them tile obviously.

'C' basically has left side tiles and right side tiles, for the vertical lines.  The nes zelda used this method in dungeons:
http://199.101.98.242/media/shots/56074-Legend_of_Zelda,_The_%28USA%29-2.png
it actually looks close enough to 'A', but it does require twice the tiles as 'B'.

If you want a tiled wall of vertical planks, the easiest, least tile using method would be to just have them all vertical, with maybe an in between tile in the corners since the planks are fairly thin.