Illustrate a sentimental Valentine's Day scene set in a cosmic backdrop. Two cartoon-based lion siblings are playfully roaring 'I love you' to one another. The stars around them shimmer with a soft luminescence, shedding a gentle light on their soft, cartoon-like attributes. One lion is dressed in a glossy red spacesuit, whilst its sibling wears a gleaming blue spacesuit. Both their suits have a motif of tiny hearts. They are enclosed in zero gravity with numerous hearts floating around them. Their tails beautifully intertwine to make the form of a heart, symbolizing their brotherly love and unity on this special day among the serene beauty of the cosmos.

Generated with these themes: Lions, Brother, Space, and Colour red or blue.

Made with ❤️ by AI.