escort looking good mate,i would leave it 24 hrs then it gone off proper & will sand nicer,
wot i do on milliput is get the shape best i can then its less work sanding,
i wait for it to go hard abit say 20 mins then give it a good rubb with wet fingers to smooth out any lines were u added more milliput,then get the shape better.its easier to do wen gone abit harder
good atempt tho mate for first go