Its really good for a wip. Just some notes from what I have looked at. Most of the roads need to be "repaved" since they act like dirt around 70% of the time. I found 3 buildings that have no collision and The suspension bridge rails are really tire hungry. But other wise the road size and turns are perfect so keep up the great work :3
I know its a WIP, so here's some thing I noticed that I have no idea how to fix: 1) There's a massive frame rate issue near the small houses next to the large suspension bride. 2) Some of the inclines and declines on the inner island trail seem to be too steep for vehicles without lifts AND major engine tuning. 3) I don't know if this is intentional but, there is close to no vegetation on the islands where there are no buildings. 4) This could just be me, but on some of the paved roadways a quarter of the road will have dirt particle effects even though the vehicle is clearly still on the road.
Other than that, I really like this map! It's fun to drive and is a little relaxing compared to some others, so don't let these problems intimidate/overwhelm you!
Quite a good map, obviously WIP so many features aren't there but looks promising so far. I have found that some buildings kind of "suck" the car into them if you bump into them (tested with D15 Marauder).