Hello,
I came across a clothing brand that has an interesting design. Do you know if there is, for example, a youtube channel where there are tutorials for similar designs?
The top one is totally illegible and poorly designed. I wouldn’t be inspired by it.
If you are talking about the effect on the skeleton, It looks like someone played with the various hue and saturation filters in Photoshop.
The bottom one, I’m guessing was constructed in some kind of 3D program. While there might be tutorials that explain all the various things going on in that image, any 3D program has a steep learning curve.