The orange lighting from underneath is menacing. Nice work.
Your pixel art actually kinda reminds me of a synthwave remix I heard of At Doom's Gate. It just kinda has a similar vibe, I think, since the remix is slower and sounds more epic in some parts, which works with the not-so-dynamic but very intimidating way that you draw these monsters, and the electronic sounds go with the pixel art. Here it is: https://www.youtube.com/watch?v=VfU6MeP5Fq0