Art Prints?

Hello

I am researching going to print for some of my Photoshop artwork.

I have only used standard printers on glossy/canvas papers in the past, but I want to step up and get some better quality prints to produce framed wall art, on canvas, or specialty art papers.

There is a bewildering array of things to consider and I don't know where to get started.

I'm hoping to get some direction here.

One of the first questions I have is... What would be a good Image Size & Resolution I should use in Photoshop to get a good quality print?

For instance, one of my pictures is not a standard size for framing, 24 inches wide x 12 inches high. The resolution is 72 pix/inch

It looks good in that format, and has printed well on small format, but should I adjust the artwork and resolution to fit more standard size printing and frames?

I am on a tight budget at the moment, so can't afford a quality plotting device, so I will also be looking for an art printing service.

Thanks for any advice