Tear my business apart!

Hi guys!

I'm here today for some feedback and thoughts about my small business. A bit about myself, i'm a 22 yo currently in the army and just doing this because i enjoy it. Its become my reason for getting up every morning and staying up late every night. It's on my mind constantly, the first thing i think about and the last when i sleep (Sad, i know). I will finish my army term in August and after that, it's university for me :) (Feel free to ask me anything about this if you're interested)

I'm basically looking for advice/feedback from you, as the customer; the good, the bad and the ugly. I'll take it all :D

My site: Ryanyoung!

Before you go: "Oh, another t-shirt store..." Please know that I'm doing this more for my love of art and design and to actually challenge myself to come up with ideas/designs daily. It's something i've thought about doing for almost a year, and since i couldn't seem to get the thought of it out of my head (despite reading about how the market's saturated, or how little you make etc) i decided to just make the jump, and satisfy this urge in me :) I'm not doing this to make a quick buck (though making money from this is definitely a plus) but to satiate the hunger on the artistic side of me while hoping the business side of me turns a profit from all this.

On to my site.

I'm just 1 guy behind this. All the designs are mine and i use Printful along with Shopify. (if anyone has any questions regarding both platforms i'll be more than happy to answer them as best i can).

I guess my questions are:

1) Am i missing anything from my site? Is there something i might have overlooked or let slip from the whole purchasing process?

2) I understand marketing will be a HUGE part of this. I'm reading up as much as i can about it along with fb ads, instagram etc if anyone has any tips/advice about this i'd be forever grateful.

3) No one knows that i'm doing this, not friends nor family (i guess i wanted to be sure i could succeed before telling everyone i'm doing this. If i do fail, then no one needs to know and i'd have learnt something from this adventure). As such i would love some honest feedback about my designs. This is the most important part to me, if you love/like/hate it, why? :)

Lastly, to thank you beautiful people of r/entrepreneur and to celebrate my going live, here's a 10% discount code: young10