My names Kaisha, I'm 25 years old from Melbourne.

I'm quite new to astrophotography (a few months in!) I'm still learning but I'm having quite a difficult time with processing my images particularly photometric colour calibration on software such as siril, pixinsight ect.
For background, Im basically working with little equipment at the moment.
Just my Nikon Z50, kit lens (16-50MM & 50-250MM - I mainly use 16mm f.2.5) untracked on my tripod.
I know you don't need expensive equipment to produce amazing photos (altho I am still saving up because holy wow, how could I not!) But my images seem very lackluster, colour calibration always fails, I've tried a lot of different options. I don't know what I'm doing wrong.. my images are also very noisy in green usually. I've been trying to photograph the Orion nebula, tarantula & Andromeda galaxy. Travelling 2hrs away to absolutely no light pollution, taking roughly 25-50 shots each and all my calibration photos, stacking in deepskystacker/siril, also following along with deep sky youtubers, yet still quite lackluster results.
I'm just wondering if any of you knowledgeable folks could help this newbie?
I've always been so fascinated with space and the night sky, seeing all the images everyone produces is so breathtaking. It would be a privilege to learn from you all.
Thank you so much.