I can see you "hardworking" already setting up the back drop n stuffs.
unless its always already there..
I remembered I took me a few hours to get nice backdrop (I am poor too) for my water droplet shot. So find one day, you can afford the luxury of time, get a proper good shot, than do a half hearted one.
Time to come, you may get a good pic that makes everyone "wow".
Potential is there, add something like fork, a small plate with the cake.. spice up the thing.. maybe a coffee cup beside the cake, some flowers.. Just do one good one is enuff (cake pic), which may leave you with a cake to finish afterwards (due to your handling..keke). Unwrapped it, place it nicely on a plate, fork n stuffs..
Eg#11 pic, potential with good composition, with a plate n fork complementing it, won't it b much better?
I also did try some shots with the mooncake, just that I can't unwrapped all the mooncakes out and get a decent shot, I don't bother. (I was at a hotel room lazing around, wife was sleeping)
I suppose you are at home, you can try the different setting of WB. Look at one which gives more pleasing tone. Try shoot in raw if you have not. Then adjust it before output to jpeg.