Thunderbird in a Time-Traveling Oil Painting

An epic oil painting of a colossal thunderbird bursting from a steampunk-inspired time machine. The brass time machine is riveted with glass dials and carved mythic motifs; the thunderbird's plumage glows with electric blues, turquoise, and gold, rendered in thick impasto and crackling with lightning. A swirling violet portal opens beneath the machine, while shifting landscapes pass through time: a primordial forest, a medieval town, and a futuristic skyline. Painted in the Romantic oil-painting tradition with dramatic chiaroscuro, warm ochre highlights and cool blues; dynamic diagonal composition emphasizing motion and myth.