Personally I thought the brown lines were slightly easier on the eye, even though the black ones are a bit more prominent.
As for the font, there are a number of small bitmap fonts that might be easier on the eye... there are a load listed here that are a bit less blocky, bit still legible at a tiny size:
http://www.dafont.com/bitmap.phpI'd be inclined to switch the order of "Honey Storage" and "Min/Max reinforcements" in the legend, as this will keep the two bonus-related instructions together. In fact, I even think the "Min/Max reinforcements" should go left of the "Honeycomb Cluster" bit
While on the subject of the legend, the MIN and MAX have misaligned baselines.
As for gameplay, I can;t see any inherent flaws.. I've yet to run the figures through the bonus-drop calculator, which will give an indication of the likelihood of being dropped a bonus area - as long as there's nothing outrageously high, I can't foresee any major problems.