Conifers anyone?

Those look great!  Very nice.

Very true Don, that is why I have so much trouble in the medium scales, I have made trees and scenes for models in scale from 1:72 up to 1:12 for railroads all the way to dollhouse landscaping and it is easier for me to make a pine type tree in the smaller scale where the individual needles are too small to be seen, when I get up to 1:24 and 1:12 scales the trees need an approximation of needles to look right.

Here are two trees I made for my mothers display, she has a collection of antique, hand carved duck decoys.  I used 1:35 scale for these because of the height of the display case.

It depends very much on the scale. If you are working on a small scale diorama what is usable is far different than for something in 1:24 or 1:35 scale.

I scratchbuild all of my own trees, in fact it was trees and rock faces that got me into model making.  Here is a sample of my own diorama, it is a larger scale, I use 1:22.  I know that is not a normal scale but I did have a reason for doing it when I got started, now I just am so used to making everything in that scale I am comfortable with it.

To the question at hand, Personman, I can make the tree, it wont have the exact filiage because i can't make a perfect scale evergreen needle but I will produce a tree that if you have the correct landscaping people who know trees will be able to identify the genus if not species.

Here is a photo of my Indian diorama showing the foliage that I can make.

If you are interested in a custom tree, contact me through the site with your email and I would need to know the scale and size you want the tree.

I agree with the modelrailroader reference.  Woodland Scenics is the big name in model railroading and you may quite possibly find what you want from them

Trees are IMO left best to purchased from someone who makes really really good trees. Quality of trees varies by pricepoint so most really good ones cost a bit but are worth it in the end as they last a long time. I'd spend some time visiting the ModelRailroader forum for tips on making your own and Walthers.com to cruise their product selection to find what you're looking for.