1. Custom built furniture.
2.  Highlighted wall with decorative wall coverings
3. Paint colors selection more important
4. Rugs is the art on floor so choose right one.
5. Lighting always choose the right light fittings
6. wall pictures and other wall art
7. Make the furniture that fits your space
8. Highlight wall edges
9. celling height and its designs change the interior feeling
10. Measure twice, buy once

Keep in mind when planning your new home or doing interior there is so much to think about! there is no shame in asking for a professional help.