That's the main downside to learning Wing Chun through the Internet.
However, if you are familiar with Wing Chun, video learning through quality resources, can help you quickly polish your skill and help you get a deeper meaning.
Because you have no school available to help you learn, then I would chose video learning over pictures and books. (Books are great for their own reasons, and that's a topic for another time).
Since I hear from many Wing Chun'ers and potential martial artists who do not live near a proper school, I developed "Wing Chun Life Video MASTERY." Check it out. I hope it can help you in your situation.
Information on this site is provided for educational and entertainment purposes only. Don’t attempt on your own; it's dangerous. Always seek peace, the high road, professional medical advice, and take responsibility for your actions.