This map is looking pretty good. nice work.
There are a few things I see to comment on right now, though.
1. can ports attack eachother? It would help to have that explained somewhere on the map.
2. Continent bonuses. Could you at least stick some kind of number in as the bonus, just as a guess? One requirement for the ideas stamp is "speculative bonuses". Since you can't speculate with only question marks, it'd probably help to put some kind of number in there, even if it will be changed later.
3. Some continent borders need to be redrawn. Mainly the one between Glos and Herefs. Right now that one is really choppy while the rest of the borders are cleaner and more smooth.
4. The font on the bonuses section should be a bit smaller, I think. So then you could put each bonus all one one line. Right now its a bit confusing to read because it says:
Hold 4
Battles +2
Hold 5
Battles +3
Hold all
Battles +5
etc....
Its just a slightly confusing format. I'd prefer if it was listed like this, with the font a bit smaller:
Hold 4 battles +2
Hold 5 battles +3
Hold all battles +5
etc...
Other than those things, I don't see any big issues with this map.
Once you get some bonuses listed, you will probably get [adv idea]. Keep working until then.
Good luck, its looking good so far.