I think making collages is truly effortful and entails a lot of time. I love what you're doing though, keep it up! Not a lot of people are into mixed media right now, at least none that I know of. I hope you become successful in your career and continue to inspire people. I know some magazines have those collages and maybe you could try applying for them. Good luck and I hope to see more of your work. They can truly make anyone's day with their colours and vividness!