I'm an artist and I need some advice

Hey guys, I don't know much about cameras or lighting, so I need a bit of help.
I'm an artist, I mostly create flat drawings and paintings. I own 2 cameras, I GoPro that I use to timelapse my process that I have not learned how to take good photos with, and an iPhone. When I was in highschool I made a portfolio for CollegeBoard and we took some really nice pictures with an iPhone equivalent to mine; here's a drawing and painting sample of those:


I try to sell works on Etsy and take photos for prints, but I have 2 issues:
First, I don't know how to get a good quality photo good enough for prints on my own. Some of my pieces contain glass and I'm not too sure how to photograph that well either. Some of my paintings get glazed and the shine affects the overall photo, etc. I cant get good lighting and I have no idea where to get it. My other issue is I have no idea how to take photos of my product that look good to a consumer. I don't know what kind of photos I need to be taking of my work to get people engaged. If you need examples of what I've been able to accomplish already here is my Etsy: https://www.etsy.com/shop/KBFineArtsStudio?ref=hdr_shop_menu
All of my print listings were from the photos I took with my teacher like the ones above. I'm pretty sure you'll be able to tell which ones I took myself lol. I'd appreciate any constructive criticism and help you can provide me with, thanks!

 

My cousin gets his scanned (also has some 3D elements on it). No glare, no shine, no shadows. I would do some research on that outlet

 

I've tried to do a bit of research on that before. Do you know how large they get or how much they charge? I just bought a nice scanner a couple weeks ago and it's doing good but I don't think it'll scan sections of canvas well. I was able to knit photos of drawings together with it though.

 

I’ll reach out to him tomorrow to get some examples and pick his brain. Some of the scanners are very close to photographs, but other scanners are just gigantic replicators.

 

Art reproduction is not my forte, but I'll throw out some of my experience...

Flat lighting works best for reproduction work, and if glare is an issue try angling the light source or the piece so that glare isn't apparent in the image. Try using lights that can be aimed, and aim them at the piece at 45 degree angles. Look up 'copy stand' for ideas of how to photograph flat art (prints, photographs, paintings, drawings, etc) to give you an idea. An iPhone can work fine, just consider a way to mount it so that the camera/phone is angled perpendicular to the piece so there's no distortion or weird cropping issues. And again, lighting. Hand holding can work if you're really really careful and do your best to make sure everything is lined up but a stand is more repeatable.

If you're trying to get something good enough to make prints from (giclée's? litho? screen prints?) you'll be better served with a scanner I think. I didn't do much repro work in college, but I had a friend who did make screen prints from his paintings and I think he used a scanner. Or a dslr… can't remember now!

Give examples of framing. Most folks don't want to frame the work themselves, or want an idea of how you'd frame it. Simple black frame from Michaels? Nicer custom matted frame? Hand made frames that are sculptures by themselves? Bare canvas?

The photos of the pieces you're offering prints of... they're at least 30x30+ in the example photos. Kinda misleading, doubt it was intentional but...