.. usually you can go find pics from airliners.net and jetphotos.net to find pics in use for photoreal textures, you can usually copy or cut parts from photo's. You will find out though you can't use every part of the photo, usually vertical stab and small parts of the fuselage, also engine cowlings. Then, from there you can edit in a graphics program it's properties, depth contrast etc. You will find from experience how to propperly do this method, it's unique in the way that it requires edits and modification's. 8)