The best way to come up with a great feature wall for a 12 year old girl's bedroom is to get her involved. Take her with you to the store to pick out some new bedding and accessories. Have her choose the new accessory that she likes the best and use it as an inspiration piece for the feature wall. Pull your paint colors from the piece and possibly a theme. The feature wall could be polka dots, flowers, even animal print... the possibilities are endless. There are vinyl wall art sets that come in all kinds of themes that would work well in a tween girl's bedroom. When she gets sick of them or outgrows them they easily peel off the wall without damaging the paint.
You' can get very helpful ideas to design a room for a girl of any age at any of the following links: http://interiordec.about.com/cs/girlsrooms/a/kids_girlthemes.htm; http://interiordesign.lovetoknow.com/Decorating_Girls_Rooms; http://www.homedecorators.com/Decorating_Ideas/Room_Planning/159/; http://www.life123.com/home-garden/interior-decorating/teenage-bedrooms/unusual-decorating-ideas-for-a-teen-girls-room.shtml
One can find a video about interior design ideas at Youtube,Houzz,Homestyler.
A great resource of interior design ideas are the magazines Style At Home and Interior Design. Other ideas can be found by watching television shows such as Candice Tells All or Design Star.
You can find great interior design ideas on the following website: http://www.hgtv.com/decorating/index.html. I use them all of the time.
Great places to go for interior design ideas are hardware stores, for example, Home Depot. You might even be interested in looking into an actual interior designer for perfect ideas.
Home-designing.com provides resources for interior design. The articles, blogs and photos should give you ideas for changing the interior design of your home. The website also provides useful links to manufacturers and stores.
You can find example of victorian styles at this website www.interior-design-it-yourself.com/victorian-interior-design.html it has many ideas and tips
If you are running out of interior design ideas for your new home you can always go pick up a magazine from Armstrong or visit them online for some more useful tips.
Houzz.com- Bathroom design ideas and photos. The largest collection of interior design and decorating ideas on the Internet, including kitchens and bathrooms.
You can get many good interior design ideas and tips online and in many home furnishing ads. You can find some ideas that you can look at here: http://www.ikea.com/ca/en
There are a variety of interior design websites with free information. Visit the websites GetDecorating, StyleAtHome, or DecorationIdeas. The HGTV website is also an excellent resource for design information.
You can find information online by visiting various design websites. Also, find the time to browse through design magazines for ideas and suggestions. Make sure to look at store displays as well.
Look through an interior design magazine or website to see different ideas of kitchen tiling. You can also read some FAQs on some interior design websites.