This is a fantastic v1! Thoughts-
I wish the facial artstyle for the goblina in the textover and game were consistent. Maybe just have the expressions on the goblinas face? I also wish there was an option to keep the clothes on.
All the below criticism is around minor usability things that will likely get fixed with future updates.
The girl and female avatars seem identical and at first and are only available on hover. I thought the game was broken until I hovered over the male/ female signs. Also- not everyone is familiar with those signs; maybe include a M/F somewhere?
Alt+Enter doesn't take the game into fullscreen and there's no options menu/ controls. It'd be nice to be able to select that, or barring that, a quick overview or readme.txt file with the control mappings and fullscreen shortcut.
On my first playthrough, I escaped the goblin into the cave and wanted to restart the game to see the actual content, but had to restart the game to do so.
The game visually looks amazing. And those assets, man- I think it defaulted to my screens native resolution of 4k and those textures are crisp. I love how vibrant everything looks and the attention to detail to things like the charachter expressions on jumping. I also really appreciate the game is lewd, but not excessively so (example- when climbing over a rock)