Expensive is not a camera. It is a clean surface, a soft light and a boring background.
Light
Stand beside a window, mid-morning, with the room light off. The window should be to the side, not behind you and not in front. Side light gives the arch a shadow, and the shadow is what makes it read as a photograph rather than a snapshot.
The floor
Plain tiles, plain wood, plain concrete. Wipe it, then wipe it again. A speck of grit looks like a crumb at full zoom.
Angle
Low, close, and slightly off-axis. Straight down is fine for soles; everything else is better from just above floor level.
Framing
Fill the frame with feet. No wide kitchen shot with feet in the corner — that is a lifestyle photo, not a product one.
Editing
Brightness up slightly, contrast up slightly, warmth up a touch. Nothing else. Presets make feet look orange.