Regardless of how a deity looks...I think the morals and behaviour patterns encouraged by the group is more important IMO.
If the deity looks nice, gentle and handsome...but if the group encourages divisiveness, pride, selfishness, condemnation of others, violence and so on...then the deity is demonic.
If a deity looks ugly and harsh.... but the group encourages inclusiveness, selflessness, humility, tolerance, peace and nonviolence...then the deity is godly.