Hey there! This is a fantastic exercise, translating historical armor into sci-fi designs is such a fun and effective way to practice concept art. Also, huge thanks to Yurei for jumping in with that excellent rendering advice! Since they already covered the lighting and materials so well, I'd love to focus purely on shape language and pushing the core design of your concepts. I did a quick paintover to show what I mean. When adapting a reference, the main goal is to identify its "standout" feature, the iconic silhouette that defines the object, and exaggerate it, rather than letting it get lost under new sci-fi details. The Frog-mouth (Top): The original helmet is defined by its smooth, swooping lines. I exaggerated that sweeping, aerodynamic curve, keeping the edges sharp and flowing to give it a sleek, almost high-speed aesthetic. The Houndskull (Middle): The medieval reference is famous for that distinct, aggressive pointed beak. In your sci-fi version, the round gas mask kind of swallows that feature, making the silhouette a bit blocky. In the paintover, I pushed the shape language to bring back that sharp, forward-thrusting triangle. It reclaims the helmet's original identity and makes the character look much more dangerous! The Barbute (Bottom): Your design had some really cool mechanical ideas with the cheek attachments, but they were competing visually with the helmet's main shape. I brought back the tall, smooth dome and the stark T-visor, simplifying the side attachments so the viewer's eye goes straight to that iconic focal point. It's all about finding that one defining shape and letting it dictate the rest of the structural logic. You have a really great eye for mechanical details and color, so combining those skills with a bolder, more exaggerated primary silhouette will make your concepts incredibly striking. Keep up the awesome work! | Artwod Feedback