A tree I made with Arbaro when Blender still had not the Sapling add on, that made things very much easier. It has a relatively small amount of leaves. Better for use in landscapes, perfect if seen from a certain distance. A little bit of sculpting on the trunk should give more kinda realism, but also slow down your render times.
The trunk is not textured, but you can easily grab a good seamless bark texture from CGtextures.com .