Any pony can be rehaired too without cutting the head off. You simply cut the affected plugs as short as possible and pull the rest inside the head. Then you prepare in a hair plug with a knot in the middle and push that gently in the head with the rehairing tool. Cool and easy for several plugs only. I wouldn't do that with a full head. 

In general you will break the mechanism when removing the head yes but with the right glue (epoxy - no super glue) you glue back the tiny piece and can put her back together.

From shimmerlocks Cupcake is the correct color (https://shimmerlocks.com/cupcake?search=Cupcake&description=true)

I once got the glitters for all ponies in the correct shades - if I remember from ebay but that was long time ago. I know that Baby Glory is one of the 30 glitter ponies that has a mix of 2 colors: purple and silver. Only 8 ponies don't. Also micro glitter is important.
I use the same technique for application like BC.
You can sunfade her sure - but be careful - white ponies might get brown in sunlight. 

Don't forget Emily under Ahorseofeverycolor on etsy. https://www.etsy.com/de/shop/AHorseOfEveryColor?ref=l2-about-shopname

Ah good eye @Pinkkittywinks (now I see the "dingy yellow mustard" which indicated Skydancer too). Well it really depends whether she has age marks or not. The rehairing even with donor hair is another issue. Pictures would help to determine the value but my first guess is about 90 - 100$.

I don't know that Skyflier came in a German variant. Only US, Italy and Argentina. Do you mean the Italian one maybe with blue eyes? She was sold in Germany if I remember correctly.

Hey dears,

Here's "the customizer" whose pictures have been used without permission by Basic Fun on Amazon. First I want to thank all the members here who support my point of view and support the defence of my rights as artist.

Well these customs have been done on the base of the known pictures back in 2016. At this time I debated with my close friend what would be the perfect poses for them based on the prerequisite to choose 4 Earth ponies (only the ones that have been used at this time in the sets with 4 ponies). So this set has been made in the way it is.

On mylittlewiki there was a note that Hasbro planned to make them in the poses that were taken by the Precious Pocket Ponies later (makes sense, these girls almost were released in the exact same body colors).

When Basic Fun planned to makes these ponies I absolutely agree with Lady Moondancer that they had just a limited choice of poses available. In my mind, they simply chose the most dynamic ones of these which are Tootsie and Posey. As they didn't have the other two poses of my sets at hand, (Gingerbread without TEs) I'm sure that's the only reason they didn't fully copy the set as mine.

I'm absolutely not happy that they chose to make Nova (blue) and Aurora (magenta) - according to their Amazon names - in exactly my poses. I understand that my ponies are just customs, which are fan-made and non-official toys but it clearly shows that this company has wasted absolutely no lifetime on design. They could have extremely easily swapped these two poses and no one would have said anything about it. But if you also look at the type and shape of the antennas, it's clear that they simply copied shamelessly. Good that they have no idea of the fancy gimmick of these.

I saw these ponies last year as part of the Toy fair article, and even then I figured they copied my designs. But okay, what do you want to do as a small artist against a company from the USA if you don't have the appropriate contacts to lawyers there?

The straw that broke the camel's back was the fact that my images from Deviantart were just extremely poorly cropped and taken for listings on Amazon for these ponies.
It was rumored on the part of some members that it was going to be a third party seller, but no, it was Basic Fun's ads. 

My custom pictures were used WHILE these ponies already existed either finished or in some sort of prototype status at Toy fair. Why couldn't these pictures be used right away?

Also, the communication with Basic Fun themselves (not even responding to my inquiry on their contact page but just because of my copyright infringement complaint officially through Amazon on 04/27) shows that they are not aware of any fault. They didn't even offered an apology.

I have therefore sent them a Cease and Desist Letter on 04.05. Enclosed is the link, for those interested (https://drive.google.com/file/d/15t6VGaHDRthzov45LZGujsHHxRppc_1b/view?usp=sharing). My address is blackened out here for privacy reasons. So far no reaction.

I understand that there is nothing I can do about the pony poses which is okay for me, but the fun really stops when using my images for wrong ads on Amazon and for third party UK sellers (see the C&DL).

Despite the hassle I hope everyone has fun with the ponies. Those who don't buy them out of solidarity get an extra big imaginary hug!