In order for me to get more volume I have to give up some curl definition. If you look at the pictures of the volumned hair they do not have as much curl definition as you do.

I'm not sure what your technique is but I would suggest scrunching your products into your hair upside down and not have your hair soaking wet. Diffusing with your head down will help with the volumne. Then scrunch your hair and use your hands like a rake at your scalp to raise the hair off your scalp but do not pull through the hair or else it will get too frizzy. Also using an afro pick will help with this.

3b, Medium-Coarse (slight coarse charactericstics), Normal porosity & Low elasticity per Curl Wizard Profile.
Low-poo: Nourish Shampoo
Co-wash: Suave, Vo5, HE, Aussie Moist
Deep Conditioner: GVP Conditioning Balm
Leave-in: Nourish Conditioner (Trader Joe's)
Stylers: LA Looks Sports, Coconut Oil, Almond Oil, Jojoba Oil.
Methods: Wet plop or pineapple at night, diffuse in the morning. Scrunch w/joboba, coconut or almond oil.