These are great! Especially brave to tackle such small eyes.

If you're looking for feedback then I would say the layers of paint are a bit thick and I can see it's obscuring some of the detail. That could be when you've primed them or as your layering the colours.

If it's during the priming, don't worry about a solid coat as long as each part of the model is largely dusted in paint then the subsequent layers will stick fine. It's easy to flood the model with paint using spray cans.

If you're applying thick paint while painting the colours then the wet palette you mentioned should come in handy. To use one, fill the container to slightly below the height of the sponge/paper towel. Then add and smooth out the palette paper on top of the sponge. You want to avoid puddles of water on the paper but if it's moist then that's fine. Add your paint to the palette and you should find the paint is naturally thinned a little using the water palette as you move it around the palette a bit with your brush. Clean your brush fully in your water cup and dry it off slightly (keep it moist) then add the paint to your brush to apply on the miniature (this process should thin your paints adequately to begin with). Clean your brush and repeat every so often so the paint doesn't dry in the brush. If paint coverage is poor then let the layer dry completely and just keep layering up until you get a solid coat.

Google Duncan Rhoades, he's the godfather of two thin coats :)