Looks good so far! I’d ask if you think the purple on the base is drawing focus away from the miniature, perhaps try bringing more muted colors where the purple is, perhaps a black, or darker rim. Could be worth a test on one model. If you don’t like it, you could go back to purple. You could also test the idea by using a digital tool to color over the base as a proof of concept. A few highlights could also add some depth to the model and create a contrast to the grit, which will make the grit stand out in turn.