Anything else!
The ones with links are free to use WITH credit!
Nature
 https://www.deviantart.com/profiledecor/art/F2U-Rose-Pagedoll-755592631
 https://www.deviantart.com/profiledecor/art/F2U-Rose-Pagedoll-755592631
 https://www.deviantart.com/mudkiplox/art/F2U-Pixel-Succulent-733655260
 https://www.deviantart.com/mudkiplox/art/F2U-Pixel-Succulent-733655260
Bugs/insects/arachnids
 https://www.deviantart.com/linkenna/art/Centipede-divider-haaha-519839914
  https://www.deviantart.com/linkenna/art/Centipede-divider-haaha-519839914
 https://www.deviantart.com/ground-lion/art/F2U-Kabutomushi-Pixel-Beetle-664701522
 https://www.deviantart.com/ground-lion/art/F2U-Kabutomushi-Pixel-Beetle-664701522
 https://www.deviantart.com/buoyfriend/art/Rhino-Beetle-574275101
 https://www.deviantart.com/buoyfriend/art/Rhino-Beetle-574275101
 https://www.deviantart.com/buoyfriend/art/Blue-Green-578415511
 https://www.deviantart.com/buoyfriend/art/Blue-Green-578415511
 https://www.deviantart.com/buoyfriend/art/Beetles-573913300
 https://www.deviantart.com/buoyfriend/art/Beetles-573913300
 https://www.deviantart.com/deertine/art/VICIOUS-PREDATOR-f2u-751509628
 https://www.deviantart.com/deertine/art/VICIOUS-PREDATOR-f2u-751509628
 https://www.deviantart.com/marrionetta/art/Praying-Mantis-150528080
 https://www.deviantart.com/marrionetta/art/Praying-Mantis-150528080
 
  
  
  all by https://www.deviantart.com/sugarmoths/gallery
 all by https://www.deviantart.com/sugarmoths/gallery

anything else/unorganized
 
  
  
  all by https://www.deviantart.com/babezord/art/F2U-chomper-banner-pixel-636993048
 all by https://www.deviantart.com/babezord/art/F2U-chomper-banner-pixel-636993048
 https://www.deviantart.com/quasi-omnia/art/Cute-Killer-Badge-523170649
 https://www.deviantart.com/quasi-omnia/art/Cute-Killer-Badge-523170649
 https://www.deviantart.com/profiledecor/art/F2U-Pink-Bow-760032871
 https://www.deviantart.com/profiledecor/art/F2U-Pink-Bow-760032871
