Forgive me if I mis-use the term "Pagan" here, amongst Pagans. I'm using it in the sense of "non-Jewish, Christian, or Muslim" religions and practices.
You say you are "inventing" gods? Then probably they will be a reflection of your characters in some dramatic aspect.
That said, being non-specific to actual real religions' gods -- I like how many of the Hindu pantheon reflect cosmic forces, aspects of the human psyche, AND manage to function on several inter-connecting levels (so you can understand them on both a surface level or go deeper into understanding how People and/or the Cosmos works.
Let's say, KALI:
On the surface, Kali is a terrible and terrifying DESTROYER, bloodthirsty and merciless.
Peel back a layer of onionskin, and yes, Kali is a Destroyer ... but she Destroys the Physical things of Maya and Illusion which enslave the humans' Spiritual growth. Kali LIBERATES the soul by stripping away all the materialistic lies and illusions of this earthly existence.
I suppose there's a parallel to the plight of JOB in the Bible: Job is told by his neighbors to curse God for all the ruination God has allowed to befall Job. But Job's "enlightenment" occurs when he realizes that what has happened is a transcendent experience, God (who allows the Sun to shine on wicked and righteous alike) is revealing to Job that NOTHING in this world comes between the human Soul and God.
It's a sort of "I Free you by taking away everything that isn't the part of you who COUNTS"
Job says "Have pity on me, because I have been touched by the hand of God" -- it's like the people in the Bible who fall on their faces when they see or recognize the Divine. "Don't kill me!" It's a terrible, liberating TRANSCENDENCE.
So we can FEAR Kali on one level, yet see the deeper Mercy of Kali.
We can see the animals fall dead and decay into nothing -- and we can see that decay and nothingness begats new Life and new Awareness.
Anyway, I like Hindu gods because their very nature forces us to imagine and transcend whatever we are at the moment.
Personally, I think that glorious and terrible Transcendence is something that Judeo-Christianity has been hijacked away from, as far as mainstream culture goes.
Some folks see their house hit by a tornado and lose their faith in God because there isn't an
immediate easy answer why Something Bad Happened. That's the too-mainstream approach, the "I gave a dollar to the church collection plate ... and now God let a tornado hit my house?! How dare He!"
Someone looking
deeper might think: This is God showing us that Material Things pass into ruin, sooner or later. This is my opportunity to understand that, and cling onto some deeper Good Thing."
A Kali-worshipper would lament the destruction too, no doubt ... and also see the terrible Liberation of Kali revealed as a Gift.
I don't mean to lecture! I guess I mean mostly that to me, cool and interesting "gods" can force us into exploring DEEPER and TRANSCENDENT places.
Shallow, easy-answer gods aren't as interesting as the mysterious ones that trouble us and intrigue us and challenge us ... just as easy people aren't as interesting as deep and complicated people.
Just my opinion. Materialist gods are a bore. Gods who go no deeper than what's obviously already here are a snore.
). You have a heart, you must listen to it to tell the right thing. When you know the right thing, you must do it, no matter how hard. 
