In chinese ,tibetan,japanese, vietnamese tradition of the
Buddha Dharma and for that matter any nation that the teachings of the
mahayana took root has depictions and references to sravakas,pretayaka buddhas ,arhats,bodhisatvas and buddhas.
The word lohan is a transliteration ( a poor one) of the sanscrit word arhat wich literaly translated into english means "foe destroyer"
In the mahayana sutras the Buddha is described as " arhat,tathagata,samyak
sambodhi.The arhat , the one thus gone ,complely enlightend.
In the tibetan and chinese traditions arhats are usauly
depicted as monks wearing the three dharma robes of a fully ordained bhikshu.
They may carry a dharma staff ( the long staff with the rattle thing on top).
there eye brows can be long and there faces will be very human and a little
old manish.
Bodisatvas(transliterated by antienc chinese scholars
as "pu sa" as in"guan shi yin pu sa") are depicted wearing silks of many colors
jewlery such as braclets,bangles,neclaces and usualy a jewel diadem on there
head.
If one realy wants to know the true nature of arhats
and bodhisatvas,one should read the Mahapadmapudarikasutra where the Budddha Shakyamuni taught the the true nature of the hinayana and mahayana.
First smooth,then fast.
Smooth is fast.