The wall looks almost totally weightless. You should have the character struggle a little bit before managing to push it forward(even thought it's a light push).
the way i do wireframe renders is clone the object, add a push modifier with a push value of .3 or less, then apply a standard material with the wireframe box checked
The Pushing Points Polystein Kit for MODO 'LITE' version This 'LITE' version of the Pushing Points Polystein Kit for MODO offers all the power of the full version of the Polystein Kit without the 60 built-in presets. Get the LIT version here: http://pushingpoints.com/v2/the-pushing-points-polystein-kit-for-modo/
The cloth isn't looking as polished as the rest of the character and I feel that with how stylized and pushed you've made the face, the cloth could get a similar level of push on those folds. Maybe give it a little if the leyendecker treatment.