You are so welcome, please keep being awesome!
Thank you so so much!
I am not the best with tips, but let me try if this helps.
As always, traditional drawing helps alot!, body construction, anatomy, light and perspective go a long way.
I think the main change I had as I progressed was when I had to force myself to do several different styles and how they worked out. Looking carefully is the key.
Studying mainly the complexity, passion, and composition of 16-bit sprites, more specifically the ones for the Mega Drive and the SNES videogames. Out of the tip of my tongue I always love to point out to games such as Skyblazer, Demon's Crest, Castlevania, and Ristar along with many more.
This can will help you alot even if it's not your style because it makes you go out of the bonds insanely. You can see them and say "I wanna play that right now!" just because it's so aesthetically pleasing. Watch them carefully, edit them, play with them, and then build your own of the scratch as if they were a character of say, Demon's crest. They place texture, lights, bouncing, organic colours and defined shapes on really small sprites!
As for my own personal pixel art, I tend to use many of the same techniques and patterns even when I am doing a different style that you can notice such as texturing.
My color palettes tend to head to feel as organic as possibe. Instead of using a bright red, I may pick up a wine color and then light it up a bit with an orange and darken it with purples, wrapping it up full circle with warm colors up to cool colors, for example. Color blends alot with proportions as it helps us define everything. Shadows, light, muscles, textures such as scales. It's all about playing with colors!
I look up to others and see what can I learn that I can use. How did they do this effect. And I also have close references at hand. I had to have a bird picture, a muscles map picture, and a t-rex picture and blend them together to nail what I wanted to have done for the T-Rex.
I think the main thing is to step out of your own bonds, experiment alot, do weird things, and finish pixel art to the end and as soon as you can even if you feel something's off.
I hope some of this may be useful to you! and if not, still, best wishes to you and your projects.
As I said, I believe you're going a long way as you're already doing really good pixel art!