Hey! Maybe I can help you out a little ' v '
First off, I like both your designs, they are appealing and im glad there are no eyekilling neon colours..
I personally like the first one more, since I like brown tones, but you´d have to pick on that, but I recommend you using the same background on the designs! A different background can make look the colours in one design better in comparison to the other, it´s tricking your eyes, so I recommend looking at both of them with the same background, you can also use several backgrounds for this, just to see what environment makes your pony look good ' v '
I allowed myself to grab an old handmade base of mine and coloured it in for you, in some colours that still resemble the design you made, but alter a little (also note that colours on your screen might look different than on mine and that my taste in colours is different, but i still hope I can help!)
These are just ideas of what your char could look like as well, I recommend to experiment a little untill you really like it! (the top two are the designs you made for comparison)
And about the name: I think it suits quite well, it´s not completely dark, since its evening and not night, and it has not just purely blue tones, its has some differences to it! You would just have to decide on what kind of feeling youd like to give to your character: evil or myserious? go for darker colours. gloomy or sad? pale / greyish colours. happy and fundriven? Pinkie Pie is a good example, highly saturated colours. I think you should think abt that again and maybe you´ll find the design you´re looking for soon / v \ Sorry if this is way too long but didn´t help, Good luck anyways!
Andrew Christopher