This delightful collection features six unique characters that seem to share a connection to books and knowledge! The set includes:

1. A whimsical blue-skinned creature with pointed ears and a fun crystal/gem-studded appearance
2. A scholarly figure in winter attire with blue-tinted glasses and a cozy scarf
3. A charming forest sage character with a butterfly companion and green complexion
4. A mystical tree-like being with branch antlers (appears to be a dryad or forest spirit)
5. Two young scholar characters in simple robes, both holding books

For 3D printing settings, I recommend:

• Layer Height: 0.1mm - 0.15mm for optimal detail
• Supports: Yes, especially for overhanging elements like the books and scarves
• Infill: 15-20% should be sufficient for display pieces
• Print Temperature: Standard PLA settings (180-220°C)
• Build Plate Adhesion: Brim recommended for stability
• Scale: Can be printed from 28mm (for tabletop gaming) up to 150mm (for display)

These models would be perfect for tabletop gaming, library decoration, book-themed displays, or as gifts for book lovers and educators. The varying heights and intricate details make them visually interesting while maintaining printability. Remember to test print a small version first to ensure all the fine details come through with your specific printer settings!