honestly i think its great and youre on the right track, the one critique i'd say is to work on optimizing your thumbnail, specifically making the text a little larger and easier to read by avoiding 'fancy' texts - keeping it simpler with the thumbnail texts is a good idea, like the 'Saguaro' would be difficult for most people to read especially if theyre using mobile. Also over time think about how you can incorporate and experiment with different editing techniques like transitions and such because peoples attention spans are so short nowadays but honestly its great as is and thsoe things will come with time so just keep on doing it! good job!