Whilst many of Lambert's Intrusive works show some differentiation between facial features, 'Intrusive #63' fails to do this entirely. The dragging technique of the palette knife across the face, and below the shoulders is suggestive of thoughts so intrusive that Lambert has physically lost sight of his own being. The carefully chosen flesh colours, add to the idea that the artists mind is preoccupied with inner subconscious thoughts that express both danger and fear.

“For a long while I have experienced mental health difficulties which culminate in spells of acute anxiety and OCD that can last for days and sometimes months. It used to make working hard. In this series, I am trying to use my art to process some of my emotions. All of these are painted when I have been very anxious. They are self-portraits, painted rapidly, trying to express feelings more than capture a literal likeness. In this way I do find them a more truthful portrait.” — Matt Lambert