The key was getting a wet palette. It thins out the paint and keeps it from drying out so it doesn’t clump. I got this one, https://www.amazon.com/dp/B000C18GTE?ref=ppx_pop_mob_ap_share.

Then to get the shine, I finished it was a high gloss varnish. https://www.amazon.com/dp/B002643F0A/ref=cm_sw_r_cp_apip_ls7IJxB2ei8vv