In some ways, it reminds me of Dark Souls. The outline of the man's helm is very similar to the design of the knights' helms and the sword has a similar hilt design as compared to the Black Knight Sword.
However, I could simply be seeing convergent design. After all, Dark Souls wasn't the first to make that type of helm or sword.
Excellent work. I really like how the giant isn't paying any attention to the man, as if he is beneath the its notice. Of course, the man may have something to say about that .
What I like most about this is the lighting, the red sun in the grey sky is an unusual but realistic choice, reminds me of sunsets I've seen when there's been a nearby fire and the atmosphere is hazy. Plus even with minimal detail needed I can still have a pretty good judgement of the golem's size