I don' t think your camo color is the problem. Are you scent free? Is the wind in your favor? 15 to 20 feet is plenty of height. I' ve shot most of my deer at 15 yds or less. If they are willing to come close all the better for shot placement and penetration. Is the bow weight comfortable for you? I only shoot at 58 lbs. Most of my shots are complete pass through. I do draw early. It is much easier to hold a little longer than to try to draw and not get busted if the deer are close. Persistance is your best bet for getting that deer. Keep getting out there. Good luck!