I already told it in the Polish section but I will repeat it here (even if only in a short version) for those who don't read Polish...
I think that the base doesn't help the models but creates such an unclear picture that the models are lost in it, and something simpler and less blending with the models would be better for the final effect. Just compare it with the picture below (WIP) and see how much better they stand out and benefit from clearer presentation on this unfinished base:
Click to see full-sized image
The models also lack some deeper shadows or stronger highlights. They look flat, and this makes them look together like an unrecognizable mass...
From a distance you don't see any details of the sculpts, and that's what highlights are for - to show the details and pick them out.
Still the quality is much better than on the previous works. Big improvement to neatness and quality of painting. I just think you're not ready for limited palettes and low-contrast paintjobs... Try more exaggerated painting first and then return to more limited color schemes
