Sick designs. Unfortunately dude, these kinda all-over, graphic t shirt designs aren't really desired anymore. They were popular in like 2009, it's over now.
If you look in WAYWT thread, you'll see that only like 5% of posters wear graphic tees, and if they do, it's a very minimalistic design. On the other hand, if you go into Hypebeast at it's prime, you'll see lots of kids with graphic tees. Not a good thing.
I don't know about this, mainly because fashion goes in cycles. There's still a young group of kids that this is gonna appeal to, and that will always be the case. SO go for it.
The designs are good man, and you should keep working until you feel comfortable. You said 'not too thrilled about this one, but wanna get it off the ground,' or something like that. I would suggest just make something you would wanna rock, and feel good about at the end of the day.
Good luck on this, and future endeavors broham.