http://greenfairyquilts.blogspot.co....ree-charm.html

Look at this site and the quilt a few pictures down..a white picket fence. I am wanting to try this but in reading her captions....she says she stippled it white on white for "wood grain"...and then said she wasn't sure she liked it when ti was done.
While trying to create a similar picket fence for a quilt I am planning to do made me think....the stippling would be a great effect for the wood grain to set it off as a fence and I think it looks good had she not mentioned this issue! So it made me start wondering...what if I use a brown thread for the stippling to make it look like wood grain? I can see how white or white might be to much, however....the brown on white.... I think I can image it looking odd too...like maybe just over-play or standing out to much to give the wood grain effect or something like that.

What do you all think? White on white or brown (light brown) on white for wood grain effect?