Making frames

I have acquired a few watercolors and other pieces of art that need to be framed. They are all on paper--not canvas--and I'd like to attempt to make frames.  I have some power toolie things I inherited from my father, but not much experience with using them.
Any links to tutorials? I'm interested in possibly using branches, live edge, or any sort of recycled material.
I'm attaching a photo of the piece I'd like to frame first as it's a gift I will be giving to someone whose birthday is July 5th.
The Size is 35cm x 25cm (about 10 x 14 inches.)

I ran a picture framing business for 34 years, I can say that what you are trying to make will be very hard if you have limited experience.
Have you thought about getting an old frame, cutting some 2mm glass and use a brownish mount?

Hi John, thanks for the reply.
What do you mean by a brownish mount?
Unfortunately, where I live in southern Mexico they don't really sell those precut mats, like in the US when I was a kid it was common to see three, like cream, a color, then cream, to frame watercolors and the like.
What we do have here is plenty of glass cutters, so I can just go and have any of a wide range of thicknesses of glass cut to order on the spot inexpensively.

I looked around a little on youtube after posting and saw this pallet wood tutorial


The great thing about it, is there aren't any miter cuts in that plan..

This one also looked kind of nice, but I'm wondering if it will be very heavy in a larger size, and if it will protect the art enough as it sandwiches the painting between two pieces of plexiglass (or glass--but as I said, it that too heavy?) Also, I feel like the purpose of having three mats, apart from aesthetics is to keep the painting from touching the glass, or am I way off?

Making bevelled mats is not a hard task. You need a special cutting tool and heavy cardboard, but it doesn't require more than patience and careful measurements. Or you can approximate a less professional result with a sharp blade and a good ruler (but you won't get the nice bevel).

Making frames with glass is another matter. I've done it a few times for rough-looking projects (e.g. framing a large pegboard), but it's much more time and cost effective to buy second-hand frames, have new glass cut if needed, repaint them, and cut a mat to match your artwork.

Interesting,
I hadn't thought about making the beveled mat myself. One of my teenage daughters is really good at meticulous work. How hard is it to do with a brand new Exacto knife?
I'm not sure I can find second-hand frames in the size I need locally.  One of the few sad things for me about living in this part of Mexico is the nearly complete lack of a second-hand market.