hey, this looks like a really good tutorial. the couple of places you need to improve is better writing translation. this is a minor issue. the bigger issue is that you do not credit your photo sources. these are not your photos, so you may be using photos that are copyright protected. below is a good article to refer to when using images.

https://steemit.com/writing/@rhondak/if-you-publish-an-image-you-d-better-own-the-license-for-it