ππΌππΌππΌππ Art is an expression of self; your inner soul. How wonderful that you expressed your Self with oil pastels and then, frame your masterpiece.
From a Reiki and artist perspective, I see the predominant colours of yellow and blue. When you are connected to your purpose, your passion, like Van Gogh, he transcended his current life situation and was in his higher self, where all is possible.
Yellow is a colour of hope; 3rd chakra, personal power and fulfilment. Blue is loyality, trust, and serenity; the 5th chakra (throat) which communicates one's deepest truths. He stood in his power, His energy still radiates to this day.