Would like some critique on this oil painting study. I personally think it looks kind of flat so far and some of the objects are unrecognisable. It’s not finished and some parts are obviously missing but I hope I can get some tips before I continue. Thanks!

Would just like to get some general feedback on this still life in terms of color, value, shape, edges, etc. Or just any advice when it comes to the medium of oil painting since i'm sort of new to it. I painted it from life and unfortunately (and stupidly) decided disassemble the subject before I had a chance to take a photo of it. So the reference photo of the re-arranged still life I've attached isn't completely accurate in terms of proportions. Thanks!