I'm not a fan of recent mini from GW, but this are correct, and you painted them well. Good thing to use white and grey. It's not easy to paint a tree like this, but it's seem correct here.
Two defaults : A zoom pic can be welcome ; the color of the little faery kins make them visibles, but are not " realistic", in my opinion : it's look like chaos little familiar or deamons.
8 is perhaps a little surestimated, but it's obvious that you are a really good painter.