>>9834894You’ll want to pick an acrylic paint, not enamel.
As for the kind, I’d suggest hobby paints used for miniatures. There are a lot of different brands, most of them are fine. I personally like P3, but they can be difficult to find. Vallejo is good, and they have pretty much any color you could want.
Before you start painting, you’ll want to wash the pieces in warm water with a little dish soap. This’ll remove any chemicals like mold release agents, which will mess up the painting.
The key to painting is patience. Acrylics are water based and will need to be thinned. The goal is to put down multiple thin layers, allowing the paint to dry between each. This will allow the colors to look natural and keep the paint itself from glopping up.
You’ll want to also get a clear coat sealant to keep your paint from scratching off. You’ll need to choose between gloss and matte. People usually use a spray can version. I personally prefer the brush on kind. It takes longer but allows for more control. You’ll want to apply at least two coats, only applying the second after the first dries.
Resin joints aren’t going to be as durable as plastic. They also may not hold a pose as well and end up being floppy. The other benefits of plastic joints is you can just get them in the right color and avoid having to paint them.
Garage kits come in a verity of quality. You may need to do some sanding to remove flash and mold seams. You also may have to drill out the holes where the joints go.
Remember, this whole process is something you’ll get better at with time and practice. Don’t put too much pressure on yourself and try to enjoy it. The only one who has to be happy with the end result is you.