Not viable for any serious play, because of size and the singular 1-bonus. Good thing is I like the borders, very nice and visible, good from a visual standpoint. You could easily expand on it in multiple ways, I'd advise you to expand on this one rather than starting any other projects, make it at least 4 times as big as it is now for viable 1v1 templates.
I agree with Szeweningen, its not worth making if it will never get played. You have all that space to add other islands, try to add some strategically element to it, then it might become popular. I suggest removing the '1' valued bonus, like Sze suggested. But also change the colour of the bonuses, not black.
I suggest removing the '1' valued bonus, like Sze suggested. But also change the colour of the bonuses, not black.
Actually, if he adds to the map (making more islands to have 50-80 territories), going with a few more 1-valued bonuses might be a good idea. If it's the only one, then it's bad, but maps are playable with multiple 1-for-1 bonuses. (Such as Imperium Romanium, though Guiroma has phased those out.)