My advice Mr.Wolna:
If you're not able to create Talking Heads by yourself, go and register on few forums (like CG Society) and simply ask people for renders of characters from front view. Show them one of the original Talking Heads (without any background) and tell them the size of the render (in this way you'll avoid scaling of the images). Also ask for renders without AA + alpha channel. Next, point them your thread, here, at NMA. If anyone will do it, give him credits and that's all. This is much better way to get quality stuff than taking random images from the web, IMO.