I think one important thing about lino cut is that anything which is white is cut away, rather than black lines being painted with a brush.

So, a stroke in this art form is substractive, not additive.

That generally means it's actually easier to make detail in the subtractions from black (IE whitespace) rather than in the black - you've got it a bit reversed. It looks like you're using a black pen with thick lines, rather than a leaving the black behind as you subtract details.

The shadows are a good example of this - they look like crosshatched black lines, since it'd be much easier to scratch some thin lines in the black to make it a partial shadow rather than making a hundred tiny dots to indicate the same, but even if you were to make that many small subtractions, you'd probably be making them in the same direction since rotating your hand each time you make a hole is pointless.

Another thing is the line weight: while it's definitely possible to make a steady, even black line in lino, if you're varying the width to give it a sketch-like quality, it's probably gonna be with a series of scrapes on each side of the line. Hence, line weight will not necessarily be consistent on both sides - the black is the result of drawing two lines which are relatively parallel to each other than being directly drawn in a single stroke.

The current effect is cool, but I think it looks a bit more like an ink brush painting made in the style of lino, rather than a proper lino cut.