anyway, i see dust on your canvas, big one. and on the bottom pic, either you make the canvas more messy, or u make it silky smooth.
top composition abit off, something went out the corner... lighting wise, the centre chili was off target. its indicative that the effect was done using 1 light source from the left. hence the plate have 1 big missing part. in the end look like a tea pot base than a plate.
bottom one, composition also abit off, and give ppl a weird feeling its not in the centre. samething, shadow was hush on the other side. there is 2 light source for this picture. and 1 is more powerful then the other. but either the flash you use is too narrow, or the angle is wrong.