Firstly, great work for a first solo jam! Really juicy and a lot of little details that add a lot to the combat.
I found the game really hard. This is fine, but having such a long death animation really messed with the pacing and lead to a lot of frustration in a difficult fast paced game like this, especially with manually restarting. I really struggled with the melee, especially because the enemies insta killed me when I got too close. My strategy ended up being to wait for enemies to attack, kill one, then run away which is a weird dynamic for a game with time pressure. I think this could be really fun, you've got a lot of juice and polish in here. I tragically couldn't get past level 4 because I couldn't get the melee double jump mechanic (?) to work after a lot of trying, sorry :(
All in all, these issues are minor and this is a super great game especially for your first time. Nice job!!!!