That shower curtain is pretty intense. Are you sure you want to keep it? It's just a little "precious" for older girls with that much pink, IMHO. The only color that I think could stand up to it with older girls would be a pretty bright orange, and try for a Morroccan casbah look with even more pattern and color and brass hanging lanterns and screens. Layer a cobalt blue curtain under the pink and use some metallic chains for the tieback for the pink curtain. Paint the ceiling turquoise. You can get some talavera or Turkish tiles on Ebay and frame them for an accent. If you have a drop in sink, you could replace it with a talavera one. They aren't that expensive and give lots of style. Cobalt blue bath accessories and rug with other hints of turquoise and pink here and there and it would be fab. As an alternqative, I could definately see doing a fun apple green and white bathroom, but not with that curtain. For green and white, use the chair rail/wainscoating approach and put the green below with white above. A fresh gingham check or ticking stripe for the shower curtain and add in more color with different shades of green towels. A dark green rug and various green accessories would complete the look.

Well, OK - you know what you want! So, next step is just to try some whites. Ive been using Zinsser Exterior Permawhite in satin for my white trim - straight out of the can - and have had good results with it. In fact it typically lasts better and long onger than the fancy schmancy Sherwin Williams Seafoam Green that I have on the other parts of the house. Its a nice true slightly warm white - not an identical match to the white aluminum storm windows but close enough to read the same. (It is thin and goes on thin, and I often need multiple coats - up to 4 or 5 - but the end result is a nice hard smooth surface. No I dont work for Zinsser LOL.) What color is the roof? Some people ignore the roof thinking it has no bearing on what their wall and trim colors should be, but thats a mistake I think... unless you're planning to replace the roof in the foreseable future I also give some thought to the neighbor's colors, not that anything has to be matchy or harmonize.... just to avoid flagrant clash which would have the effect of possibly making both houses less appealing. It happens sometimes!

Thank you all for the suggestions! We plan to tackle the carpeted area, just looking for flooring to match the rest of the house. It is right by the front door, but the section was odd and the color was a light beige. Also, new backsplash and countertops will be added to the kitchen so thanks for pointing that out! I plant to remove that mantle and paint the brick around the fireplace. Thanks for the suggestions. I will definitely post pictures along the way.

If your house is well insulated, the darker siding shouldn't affect internal temperature, as nsc6 said. The only way you can assure you won't tire of the house is to use something like HardiPlank that you can paint in 7 to 10 years if you tire of the color. It's quite a bit more expensive than vinyl though. Will you be living here full time or is this a vacation home? If it's a vacation home that you won't be driving up to every day, I think it would be a nice change to have something a bit different than you see driving down your street to your home every day. If it's a weekend and vacation getaway, it should feel special. Honestly, it should feel special even if it's going to be your everyday home. You could leave the brown window trim. It would work well with the cedar siding.