I like the palette: greens and violets. I don't know about the lamp. It might confuse me (though I am easily confused). I can't see depth perspective sometimes and can't see where it sits very well juxtaposed with the vase of flowers in this particular painting.
I like the colours and the brush/knife work. The vase of flowers is the star - for me, the lamp is a distraction because your comp is two similar shapes, similar size. Just my opinion of course - it's your painting!