I can't really give you a tarot meaning critique, as I'm new to this, but I can give some feedback on the look of the card!
I really want to see some kind of background on this! Even if its just a really faint mountain range, it feels as though Death is kind of floating there with very little around him. Also, maybe a hightlight to the scythe?
I think the skeleton looks GREAT. I love the detail you've given the bones, and it looks anatomically correct, I also like the fact that the bones are black, I see a lot of light colored skeletons, but black ones I think are more interesting. I think the trees look good! I like the muted neutral colors you have, and I like the fact that this card feels dark, a lot of Tarot decks try to ighten up death, but I like thngs to be a little spoky sometimes. Chage can be scary, if we accept that fact and not pretend it's always easy, we can better embrace change and feel more prepared for it when it comes.
I'd love to see more!