where did you purchase your enclosure from? i would contact them and ask them for some assistance with it.

normally the UTH or flexwatt keeps the entire enclosure at the right temps and if it doesn't then warming the room is a good way to go. personally i use a heating pad on 1/2 of the top (cool side) of my enclosure for my ball. this way his ambient temps stay higher.

as for your pics... i have no suggestions as i use photoshop myself.