Crazyimage. Summoning is not at all for beginners.
The elements, you cannot control them, however, you can work with them, do some research you have the entire internet at your disposal.
As for magick and color? Not true, the color comes down to each individuals perception and opinion. For example, "Green" magick to many is working with Nature and the spirits of nature, but to some it could mean magick involving increasing prosperity. "Black" magick could mean to one working with Negative energies. Some it means cursing others, causing others misfortune, and misery. Others can view it as using Love spells and also healiong others. Same goes with "White" magick.
My point is magick has no color, magick is a label that some use to categorize types of magick.