>>3145432>>3145434>>3145435>>31454381. If you want the background to be the same colour between shots, you need to manually set the cameras white balance. This can be fixed in post through lightroom if you've been shooting in RAW.
2. You're shooting a dead static scene, yet you are using a 1/160th sec shutter speed forcing your camera to bump the ISO up to 800. The resulting chroma noise is visible on the two leather shoes, and it doesn't look good. Turn the ISO down to 100, and shoot with a long shutter speed. This will get rid of the noise and probably make the shot look better.
3. I'd say lose the front flash, and just rely on reflective material to bounce the light onto the front of the subject. In fact if you bounce the light around the box well enough you could probably get away with a single light source. Nice diffused light is key.
Pic related is a test shot I took with an improvised setup in my wardrobe after seeing this post. I used a single torch pointed at the wall for diffused light, and a book to reflect some light onto the front of the subject. Exposure time was 8 seconds with f/6.3 at ISO 100.
I hope some of this helps
