Since 1988 participates in exhibitions;
Since 2003 member of Lithuanian Association of Artists;
2005 Minister of culture (Republic of Lithuania) have dedicated the status of art creator. From 1984 till 2007 was an art director of KTU Painting studio ( http://ktutapyba.puslapiai.lt ).
From 2013, Advocate’s assistant at the Kaunas Law Office.

"R. Slavenas, a faithful representative of Lithuanian expressionism, who is no way inferior to its coryphaeus with regard to his competence, pays the biggest attention to the color plastics and rhythm of compositions. In such a way he tries to express the "musical" chords of the soul that become the stream of material vibrations. The things that would have terrified classicist in the 18th century are respected at present. The most important thing is not to perceive an open or ciphered plot of existence (which usually does not exist); it is to enjoy the abstract consonances of changing flow. Despite the rough forms of spontaneous expression that show the inner temperament of the artist, the combinations of colors are quite subtle actually. The author rejects the direct representation of reality, however maintains the implications and allusions. In his works he tends to express the spiritual experience by obscure symbols that often cannot be concretely expressed in words. The artist does not deny material world, he simply transforms it into peculiar mirage, where all the elements have the same role - to create such a configuration of forms that would satisfy the constantly changing needs of inner subject. This inner subject is insatiable: he needs more and more new and unexpected combinations, the contemplation of which would allow him to feel a real director of the Universe, who creates alive mosaic of esthetic components."

Art critic, prof. Algis Uždavinys
Vital Tradition // Literature and Art / March 21, 2003