The influence of the prison architecture upon his perception of space and the “bars” motif comes through clearly. )-: As does the imposition of structure upon chaos.

I think the artist would benefit from reading https://en.wikipedia.org/wiki/Mandala to see his work in a larger context; he is not alone and it has spiritual implications. (As he may already know.)

Carl Jung also wrote extensively on mandalas. I would recommend Mandala symbolism, by CG Jung, see https://archive.org/details/mandalasymbolism00jungrich

I think there is the potential for a small art show somewhere once a larger body of work has accumulated; hopefully the artist can attend in person.