I did say that No.3,4,5 are what attracted my eyes.
If it’s my choice to choose I choose No.4.
May be you should add some texture overall the body to make it look toxic.
Like this,if you did not tell me that they are mushroom robot ,I don’t even know about it.
https://www.greenoptimistic.com/wp-content/uploads/2015/04/mushroom.jpg
Nice modeling anyway.
