The more community maps the better! Just hope you don't put me out of a job.
Unwheel mapping's quite easy. you've got your map already s all you have to do now is add the playerstarts (I copy and paste a coordinating pair UWStartSpot and Playerstart from Citytrack into my map and then duplicate) and the UWCheckpoint volumes (you have to open unwheel.u in the actor browser) and any Out of bounds volumes you may need. However you could improve the level a few ways:
I'd do something with the lighting, if you've got zoneinfo lighting or ambient lighting it should be a very deep blue with no higher than 16 brightness IMO. You just don't have any shadows. Track looks cool though. And increase the scale of the windmills and other buildings, at least twice the size, and the church should be about 3-4 times the size. do those windmill blades rotate? Cos if they did that would 0wn.
Poss. some mountain fog or some low-lying cloud layer or something that would let you use a small amount of distance fog (I'd say a pastel bluey colour with at the max draw distance at least 12000 and the minimum something like 5000). That'd boost FPS and add a bit of atmosphere.
The direct mixture of flourishing grass (bright green) The hard rock (Deep brown) and the bright snow (white) makes a colour contrast that looks a bit cartooney. I suggest making sure the grass is a darker colour and doesn't appear right near the snow, also add some supports to the track to hold it up and that's be perfect.