I made some detailed stuff and it'd be nice to hear some imput http://www.freeriderhd.com/t/241996-detail-practice
Whats it meant to be? It doesnt look that good honestly, I'd try to clean up the detail a lot and use the lines to define the shape, rather than to fill it
So instead of spamming lines like you did, use the scenery lines to define the shape of the rock. It looks a lot better that way and a load more realistic/cleaner
if you're looking for clen featured tracks graggen's mountain ride http://www.freeriderhd.com/t/1004-mountain-ride is extremely clean