I can help.
From the pictures you have put up, I would start with a new colour.
Touch up jobs don't look like the original colour most of the time.
So if you want that new colour feel, take every thing off the frame.
Step 1. Take of handle bars, fork, wheel, ect.
Step 2. Remove all traces of the old paint. If you can't take it to an automotive body shop for sandblasting, use a cabinet scraper, followed by sandpaper.
Step 3. Spray an under color. White or silver are recommended. Since all paints are a bit transparent, this will bring out the best of whatever color you put on top.
Step 4. Spray your colour. Do not scrimp. Spray in good lighting. You wouldn't believe how easy it is to miss an area, coat after coat, because you couldn't see clearly, or were unaware of all sides, areas of the frame.
Step 5. Spray or paint on small details like pin striping, words, picture, etc.
Step 6. Spray a coat of clear cover for added protection.
Hold the spraycan or gun about one foot from the bicycle. Too close and you cannot control the application - the paint may run or sag. Too far, and the paint may be dry by the time it hits the bicycle, resulting in a grainy finish, and weak paint. You may need to adjust closer or farther away, depending on the paint and equipment. Experimentation will tell. If you feel yourself rushing, you may be too close.
Paint all sides of each intersection and dropout first. Then, working one tube at a time, go all the way around each frame tube. Depending on what kind of paint you use, wait the recommended time between coats. Make sure not to mix brands or types of paint.
Paint only when the weather is right. If the temperature is too cold or hot, of if it is too wet or windy out, you may have an assortment of problems, such as insects getting stuck in the paint, or paint which refuses to harden.
Remember that the outcome will be much weaker than the original factory paint. They have some tricks up their sleeves that you don't - such as huge ovens with carefully controlled temperatures in which to bake their frames, and electrically charged painting booths.
Getting handle grips off are easy.
Step 1. Slide a bread and butter knife between the handle bar and the grip.
Step 2. Pull back on the knife and pour down cold water.
Do this a few times around the handle bar till it gets all wet.
When your done just dry out the grips and roub a wet cloth on the bar. Slide on the grigs and tell it all dry. Give it a day or two at the max.
Here are some great websites for fixing and painting of MTB and BMX bikes.
For repairs of all types
Just ideas and tips on painting bikes.
A great site for design ideas and help.
Hope your bike looks great,
Alex and Foxy