Hi José,
I've forwarded the model link you provided for further review.
Hi Arris,
Here's a good rule of thumb for whether you can get away with a
surface not being phototextured: If it's a normal building and not a
bridge or some other very large object, look at the 3D View in the
model details page. If you can see the surface from there, it needs
to be phototextured. If you can't see the surface because it's too
small to render in the 3D view image, you may need to consider
simplifying the model geometry. For very large objects where the 3D
View is not a good representation of the model, use Google Earth and
fly around the model at a reasonable distance to check it, instead.
-- Allison