Create a high-quality digital illustration featuring a lively and adorable Java Sparrow, either in grey or white coloration, as the main character. Set the scene in a simple and cozy bedroom with soft, warm lighting that delicately highlights the charm of the bird. Ensure the Java Sparrow's feathers are portrayed with intricate and delicate detailing, capturing their texture and subtle colors. Play with the interplay of soft light and gentle shadows within the bedroom setting to create a visually pleasing and delicate atmosphere. Depict the bird in a graceful, delicate pose, perhaps perched on a curtain rod or delicately exploring the room, radiating a sense of joy and cuteness. Prioritize a polished finish with meticulous attention to detail, aiming to convey both the quality and the delicate nature of the Java Sparrow in a natural bedroom environment.