After the first village and I go up to the snow mountains, there's some goblins and scorpions there, but the HP is still quite high, and they do quite allot of damage too. It may be that I need to level up the party more, I'm not sure. Just keep at it, mechanics really do take more time to get things right. My game was super difficult due to battling for at least 2 years, which I didn't realise until I started receiving different feedback about.
So If battling is going to take up more than 50% game-play, then it's crucial to make it easier than more difficult because it's a big part of what makes up your game, so start the enemies off easy, then open up the challenge if it's too long, it just makes players warm up better. It's brutally what I did wrong with my system, and I want you to do 100x better than me in all honesty.
Your idea will really grow, but do it out of enjoyment. When my next update comes out, I'll help to put your game link on my page for people to try. So keep it going. :)