a r t i s t  g r o u p


The artist group OPAL was founded in 2011, on the basis of a longstanding

collaboration between Johannes Keller and Hans-Christian Neumann.

The highschool graduate Daniel Reimer, who was taking lessons from Johannes Keller

at the time, stayed and became part of the group. The three members continued

working together on their common area of interest, i.e. concrete and constructivist art

in painting and sculpture. They specialised in the development of series

in the form of multilayered wall reliefs. In these series, viewers are invited to discover

continually evolving new systems.

The name OPAL – Artist Group is based on a quote from

the “Ring Parable” from Lessing’s “Nathan the Wise”:


The stone was an opal,

which shed a hundred lovely colours...



J o h a n n e s  K e l l e r


Born in Hungary in 1936, Abitur and apprenticeship as a typographer,

studied at the HGB (Academy of Visual Arts) Leipzig in the class of Prof. Egon Pruggmayer.

Worked as a freelance painter, object artist and typographer,

member of the VBK (Artists’ Association of the GDR).

Since 1978, collaboration with Prof. Hans-Christian Neumann,

development of new techniques in painting behind glass.

Exhibitions in Leipzig, Halle, Dresden, Berlin, Cottbus, Gera, Ahrenshoop, Wernigerode.

Since 1989, some of his works have been acquired for the art collection of the Sparkasse Leipzig.

Several exhibitions at the Kunsthalle der Sparkasse. Long-term projects and designs

in the areas of concrete and constructivist art, particularly serial processes in painting and sculpture.



H a n s - C h r i s t i a n  N e u m a n n


Born in Silesia in 1943, studied acting, then philology and German,

taught at acting schools in Berlin and Leipzig. Appointed professor and

head of the acting department at the University of Music and Drama Leipzig in 1992.

Since 1978 artist training and collaboration with Johannes Keller, painting behind glass.

Specialised in the area of concrete and contructivist art, exhibitions in Leipzig and Riegel.



D a n i e l  R e i m e r


Born in 1984 in Grimma/ Saxony, trained as an assistant in environmental technology,

technical vocational diploma at the Gutenbergschule in Leipzig,

Open University course at the University of Hagen.

Member of the OPAL artist group for six years,

in the area of concrete and constructivist art.




The series consist of several wall reliefs, connected with one another in a logical manner

in the sense of an ongoing process. The viewer is invited to discover the system

behind each individual series. Viewed from the sight, the various layers of paint can be seen.



Visual poetry / concrete poetry


2017 B - variations

In 2017, the letter B is portrayed in standard A4 format. The special charm

lies in the wealth of variations. Several examples are shown here.



The word MONTAG (Monday) is shown in large painted images, typographically constructed.



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