Looking for tattoo design advice

I’ve been getting these tattoos for the past 20+ years. I’ve recently started getting little bits of red when getting new tattoos. Now I want to add more red in what I already have. I’m just not sure what to get or add with the red.

I’m not looking for huge amounts of red. Maybe shading? Just something that will look good.

The tattoo artist will obviously have ideas but id like to go with some kind of idea myself. Im not an artist and am really stuck with this.

Any suggestions would be appreciated.

Thanks