Since you said this was your first deck (
https://deckstats.net/forum/index.php/topic,1857.0.html), I'll offer pointers. Your general principle seems to be 'midrange aggro,' because you are planning to win the game with middle cost, better-than-average power creatures. Key to that strategy is forcing your opponent to make disadvantageous blocks, which means keeping the pressure on. To do that, you might want more creatures in the 2 or 3 mana cost range (to attack early and often). Zombie Goliath and Wild Hunger are probably under-preforming, and could be traded.
Secondly, card advantage wins games (no matter what deck you use), so Harrowing Journey and Mind Rot are so good, you probably want additional copies of them.
Finally, the power of "removal" or "kill spells" must not be underestimated. If your opponent has a doom blade for your hollowhenge beast, what can you do about it? One answer is simply "play another hollowhenge beast from my hand," but you might find Ranger's Guile, Sheltering Word or Alpha Authority to be worth including.