Hi, Dimbel, & welcome! I really like waht you have so far--but then, hand drawn is my favorite, "warts" and all.

I think Torq & others have zeroed in on problem #1: fix the colors. If you scan this in to Photoshop or GIMP, this is amazingly easy. I would suggest you eliminate all white, and color over the other colors. I think you'll be amazed at how much this improves your already nice map!