This short (3 minutes) and very well explained YouTube Photoshop tutorial will teach you how to transform any portrait photo into a soft and realist pencil drawing. My suggestion: to get a little bit more of a pencil drawing texture, apply Filter ˃ Artistic ˃ Rough Pastels to the final merged image. Play around with settings to get the best result.
Check it out!
You can find it here:
Photoshop: How to Transform PHOTOS into Gorgeous Pencil DRAWINGS