In what sense does this simulate a linocut? There’s no texture to it! I would expect to see something a little more organic.

No, that isn’t the texture to which I was referring! I had hoped that my use of the phrase ‘a little more organic’ would have been enough of a clue.

I’m guessing that the up-arrow represents a tree, but without some gaps in the foliage it’s very far from being treelike. Perhaps you’re branching out (sorry!) into icon design and simply haven’t told us yet.

Because there’s a circle which is probably meant to represent the sun, and a pair of identical or near-identical long, thin shapes that look like simple representations of cirrus clouds. A conifer is often represented in primitive art as a tall triangle atop a tall rectangle.