Modern Railroad Logo Design -- 2

I’m rebranding my channel, “Steel and Steam Productions,” and need a logo that instantly communicates rail-fan authority at every size—from a tiny YouTube avatar to full-width merch prints. The visual formula is straightforward:

• Motifs: a steam locomotive and a diesel locomotive blended into one cohesive illustration, never simply side-by-side.
• Theme: unmistakably railroad—think clean lines, minimal fuss, strong geometry.
• Colours: royal blue and white are non-negotiable anchors; feel free to explore tints or subtle shading so long as they read clearly on dark or light backgrounds.
• Typography: bold, modern, and highly legible, complementing rather than overpowering the locomotives.
• Shape: circular or badge-style layout optimized for YouTube profile crops yet scalable for banners, stickers, and embroidery.

Acceptance criteria
1. Primary full-colour logo (royal blue & white).
2. Monochrome black, white‐only, and watermark variants.
3. Transparent-background PNGs plus high-res JPGs for web.
4. Master vector (SVG or layered AI) suitable for large-format printing.
5. Finished artwork remains crisp and recognisable down to 100 px.

Hand-off: organise assets in clearly named folders (Colour, Mono, Transparent, Vector) and include a simple usage guide noting hex values and typefaces used.

If you have experience distilling complex rail imagery into sleek, modern marks, I’m ready to review your concept sketches and move quickly to finalisation.