If you don't have one in mind, there are a lot of sources that can help you. There is the web. You can search over it for ideas that will suit your style. It can help you search for shops and stores too where you can buy tiles with discount. There are also the magazines which are a very handy source. If you prefer professional help, you can hire a bathroom designer.
You can also make the painting procedure easier by using stencils to decorate the area around the shower. Stencils are very convenient to use, cheap to buy and are available in any local crafts store. You can buy the stencils according to the theme of your decoration. The popular themes available are waves, beach balls and others.
Most people do not like the idea of tiling their bathroom walls from floor to ceiling. Your bathroom will end up looking like a public restroom. The best idea is to tile the walls unto eye level or a little more. You can give borders to the tile arrangement. White tiles bordered by tiles in another color like red or blue looks good. You can also use different colored tiles to create a border. Patterned tiles also make good borders for an assembly of plain tiles. Border tiles ought to be thinner than the tiles that make up the body f the wall.
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