Let’s begin with the white face. First we have to make a white cross paying attention to the color of the side center pieces. This step is quite intuitive because there are no solved pieces to watch out for. You can do this for sure with a little practice. Just move the white edges to their places not messing up the ones already fixed.
This is a properly aligned top cross:
Note how both the top colour and the side colours are aligned.
Be careful to avoid this type of top cross:
In this cube the top colour makes a cross but the side colours are not aligned.
Riding the Cube Fantastic 