Your works are creative, Sabine. You will have to work on your prompt grammar and punctuation. Did you know that "(3:0)" has no meaning here? You probably wanted to type "(3D iridescent plasma maelstrom:3.0)" -- which means give 3.0 emphasis to the "3D iridescent plasma maelstrom". 3.0 is the maximum. 3:0 or (3:0) has no meaning. The parentheses () have to be around the phrase you want to emphasize.
Oil painting, macro closeup. Three large swirling wavy stars surrounded by electro protons in a 3D iridescent plasma maelstrom (3:0) , set against a background of sparkling wavy-stars. Expressive thick blending of oil paint. Vibrant and distinctive colours. Swirling clouds of yellow and orange gas. Glowing ...