How to make graphics like these?

Tutorials, Tips and Tricks
1

Experts kindly tell me how we can make graphics like this.

More can be checked here: https://chromeandlightning.com

10536521_682194498536942_5688413674992124345_o
10536521_682194498536942_5688413674992124345_o1200×1218 214 KB

31166838_1666527073437008_5619118112927383552_n
31166838_1666527073437008_5619118112927383552_n1080×1080 54 KB

100572671_2963232883766414_4600042868894072832_n
100572671_2963232883766414_4600042868894072832_n1000×1119 195 KB

136199926_3580718372017859_5282010613414592390_n
136199926_3580718372017859_5282010613414592390_n1200×1429 181 KB

241782746_4291284214294601_4885942356644883776_n
241782746_4291284214294601_4885942356644883776_n1800×1800 879 KB

2

They look mostly hand drawn in a graphics or painting package to me:

3

I agree with moony. The style of these images remind me of … well, maybe something 198x. I think most of the light/glow/something effects were made by airbrush.

Gregor