Oliver is engaged in restoration, easel and monumental painting. He collaborates with many galleries, his works are in private collections around the world (Germany, France, USA, Italy, etc.) Oliver experiments with artistic techniques, so his works are different in style and character. The observant gaze of a person who is not indifferent to everything around him finds its reflection in his work. Training at the restoration department gave a deep understanding of the technological aspects of painting. His paintings are full of artistic techniques: from subtle tones and attitudes towards glazing to pasty paint overlays, makes his paintings more expressive and photorealistic.