Blue Comet SPT Layzner Pixel Art

My second pixel art.
You see, once i realized "Hey, this pixel art thing is fun!", i had to decide on what i should pixel-fy next. Now, i had to think hard about what would be worthy to make a piece on, and what is more worthy than the very show that made me the robosexual mecha fan that i am today?

You probably don't care about this little story, but if you're looking at my mediocre at best pieces, you must have more than enough time to spare, so i'll tell you all about Layzner.
One day, i was very, very bored. A few days earlier, i had gotten wrecked completely at Fire Emblem, and while it was a blast, i didn't wanna open it up again because i knew i would get beaten senseless and lose half my beloved characters, and i wanted to wait for when i was in a better state of mind and could properly beat the game (by the way, i never did beat that game). So i went looking for similar games. And there i saw it: the SRW J game. Fully translated and juicy, ready to be emulate- uhh, i mean legitimately played with my legitimate cartridge on my legitimate Game Boy Advance portable console!
This was just around the time i'd finished Gurren Lagann, and i'd watched Pacific Rim in theaters a bit before that, thus making me ready for them robots!
So, i booted it up, played a bit (got completely destroyed by that game as well, because i was a shitkid who didn't understand any of the mechanics) and i found myself getting really immersed in the plot. Up until then, i tried to pay attention to the plot of most games i played, but eventually got bored and started skipping it all. Not with SRW. And then i realized:
"hmm... what if i actually bothered watching this Layzner series, to get a feel for the differences between the show and the game?"
And from there, i fell down the giant robot hole, where i am stuck to this day.
...save me

Back to the actual piece, i'm much prouder of this than i should be. I especially like the shading in it, makes me feel like i'm actually competent at this.

That said, the light splotch on the top of its head kinda bothers me. I could never quite find a color that'd make it look very good, so i just stuck with that one. While i don't think it looks terrible or anything, it annoys me. Nobody so far has said anything about it though, so i guess other people don't notice it...? If you do notice it and think it could be better, tell me in the comments. I am always accepting of constructive criticism. I really want to improve at this whole pixel art thing (it's why i even joined Deviantart!), so don't be ashamed to speak your mind!
That way, i can do even cooler robots justice in the future. You wouldn't want an ugly R-1, Sazabi or Gundam Alex, now would you?

In any case, have a wonderful day and thanks for checking my stuff out! I promise i'll get better in the future!