Gateway Portal in a Steam Engine Comics Style

Panel-ready, vintage comic-book style illustration of a mighty steam locomotive tearing toward the viewer, with a colossal gateway built into the engine's side. The gateway is an arched, riveted metal frame with brass trim, glowing with electric blue and amber energy that swirls like a portal. Within the arch you glimpse a surreal alternate world—cloud-city skyline or starry cyber-abyss. The train's pistons pump, wheels churn, and steam billows in dramatic white plumes. Thick black ink outlines, bold cross-hatching, and Ben-Day dot shading define the forms. Use retro color palette: metallic brass, coal-black, crimson red, cobalt blue, and smoky gray. Include onomatopoeia such as KRA-CHOO! and WHOOSH! in jagged speech bubbles near the gateway. Perspective from a low angle in front of the locomotive's cowcatcher, with motion lines streaking from the wheels and rivets, and the gateway glow casting dramatic light on steel and steam. The scene blends steampunk machinery with pulp adventure, emphasizing power, risk, and wonder.