Lambert's portrait in 'Intrusive #55' shows the artist in two varied states of being. The right side of the portrait is demonstrable of a more human-like side to Lambert, whilst the left symbolises the artist stripped away from his exterior leaving a darker, more exposed side. Interestingly, there seems to be no signifier which suggests whether the artist is coming out of the exposed state, and embracing his more 'whole' self, or whether he is going from whole to exposed. It is the fine lines between the two, which show how easily feelings can manifest and change for the artist.

“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