First of all they all look great!
Lantern should have more yellow light.
In my opinion the barrel should be closed but it looks gret this way too.
Rocks are perfect.
You should make several types of trees.
Everything is perfect.
After a quick glance I think all of these look really nice. Great job! I would suggest that you add one more rail to the fence because that is what I feel is missing. Two doesn’t look enough to me. Another slight bit of criticisms, I think the barrel is a little bit too fat in the middle. Apart from that I can’t think of anything else you need to improve on.
These low polyflat shading models look good for a start into asset creation. I especially like the lamp post.
As for the trees, they look good in theory, but I’ve found that for Roblox games, you can get more variety with less mesh data cost by dividing your branches to be more modular and placing them onto your tree trunk in Studio. This way you can get more varieties of trees without creating new meshes for each different kind. This maximizes instancing to do all your heavy lifting and gives you infinite combinations of branches on any tree.
Looking good. I approve these builds. Although the positive sides, there could be room for improvement such as the lamp post. You could remove the lamp and separate them both. In Roblox, you can apply a rope constraint to it instead of a static lamp.