This is looking very cool Mearrin! This is not just a one-page-dungeon but is becoming sort of a one-page-campaign and the 1st level 3d-ish look is looking pretty cool already! Really like the way you did the trees. As for 3d-ish drawing I've learned that it takes loads of time and practise to get decent stuff out and must say that you do a great job so far in my opinion. Also I found out that often i have to move stuff around from the original place i planned them just to make it better fit for a 3d-ish view so i'd say dont plan ahead too much with the 2d layout up front as you may have to move stuff anyway. Looking forward to seeing this progress! cheers