So for the wood... I try many many things and I'm still trying.
The first thing is : have your base color right and carefully chosen before you start, my process implies the rule : when it's done , it's done...
I use as a base an orangy brown, kind of red brown when opaque and yellowy when transparent... A mix from flat brown, orange ink and red brown. It's tricky and In can't make it for you.
Then a brush a thin coat on my wood area (over a opaque and unifrom white undercoat as always), perfectly even. It should be very light yellow brown. Once dry I begin to draw the veins of the wood with long brush strokes. 3 or 4 coats later the veins appears and I've got roughly the same color than our belowed cardboard for the furnitures. I take then a bluish black ink and put some shadow where needed. I mix red and black paint and draw all the lining between panel and deep scratches.
Then everything is blended and the color corrected with an ornage ink diluted and evenly applied. I reinforce the veins with brown ink and finally add a light yellow ocre on the edges of the scratches.
You cant rework what you've done because when you paint is opaque the effect is very bad and dull. The vibrant color is only due to the white of the undercoat showing trough my paint.
Have fun
So as you can see, there is many colors and many coats of paint, all very thin and carefully applied. So no detail is lost.
If you want to find my professionnal work it's here :
http://remytremblay.sculpture.over-blog.com/It uncludes some of my student work in artschool (but self-learned...but that's an another story), the whole hyper-reaslitic things. And a few old personnal works.
For my personnal space when it comes to the point of experimenting it's here :
http://hobbytimeblog.blogspot.fr/I'm not the guy from scibor, I sculpted for many company and I'm now working with MikeMcVey himself on an upcoming bordgame.
Cheers