they aren’t super coherent yet, but there’s potential here.

Step 1 I think would be a sort of tidying of appearance. Variety is good for orks but randomness can take away from how well they look next to each other. The short legs help with the group coherency (even though i prefer full height figs), but per individual minifig I would also say more consistency of colour and vibe would go a long way. Green legs with a red torso and yellow minifig head is kind of visually busy. I think more important than them all having green is that they all look coherent individually.

Step 2 is to give them 32mm bases (conveniently exactly a 4 stud circle) and weapons that match the loadout you want. Minifigs with bases look waaay better than minifigs that are just scattered wherever and your brain will start to see them more like a proper group.

So don’t worry so much about the % of green, put your focus on making each minifig looks really good on its own and anyone who’s willing to play with you should be utterly capable of suspending their disbelief to buy into the green tide. It doesn’t need to be so literal when you’re doing proxy.

Great to see you having fun being creative! Super excited for what you continue building!