QUICK ONE | 1sr grow, indoor on a budget

Hello everyone. This is my first ever grow, so I'm mostly here for the learning. I germinated the first seed 1 week ago or so, which I remained in the wet towels for too long, so i didn't expect her to live. Since she wasn't looking healty, I germinated another seed, which did perfectly, and now both look healthy. I started the grow outdoors for almost 1 week, but then I realized the light they were receiving, was far from enough, so I got them a 150w LED light, which significantly showed improvements. I will try to improve the quality of my pictures over the next weeks, my phone is kinda messed up right now. Quick note: the soil from plant 1 is lower quality from the one I used in soil 2. As a first grow, I feel like it's important for me to know what differences will different soils cause, so I can choose better in future grows. Enjoy the journey, and any feedback will be gladly accepted by me. Cheers.