I very much enjoy the concept that this grid based puzzle game has. The mechanics are strong and clear and well presented. But the mechanics are not presented in a fun way.
To me it feels like every level is more a mechanic that has been sketched out by the designer, then a proper level with multiple mechanics in it. The reason why the difference is so important for me, is because a single mechanic can be brute forced until you get your win. Instead of having a dedicated puzzle you have to solve.
As for the usage of colors. I love using the basic 3 colors and their mixes. But I very much feel you have gone overboard and created too many mix colours. To the point it is impossible to differentiate between them. At that point you no longer have a strong puzzle game which you have to solve, but a find the combination brute force. Which is not that fun to play.
To me if you would stick to more basic colours you could do more interesting things. If you keep it simple you can also do association by things to colours, without directly showing the colour. If there is for example one dedicated machine that just hates blue. The player will very quickly realize and learn that everytime I find that machine I shouldn't be blue.
At last I wish there was more Ork logic involved. Red blobs move faster. Yellow checkered ones make bigger explosions. And pink blobs are invissible, because have you ever seen a pink Ork before?