Can i get a few reviews on my channel art and thumbnails?

[DoodlesPlays]

View attachment 18424 View attachment 18419 View attachment 18420 View attachment 18421 View attachment 18422 View attachment 18423 View attachment 18424 So far i've only gotten a few opinions on my channel art and thumbnails and one of those opinions was quite negative, so i'd really appreciate more! If you like them be sure to tell me and include specific things you like. The same goes for if you don't like them make sure to tell me and give me some specifics on what you do and don't like so i know what to change/improve! Thanks for all the feedback i'll reply to everyone and all criticism is appreciated both positive and negative as long as it's intended to help me out i'll leave my channel art below followed by a couple of my thumbnails

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[markkaz]

Why are these pictures so big? You should post them in the same size that we would see them on YouTube so that we can give a fair assessment. They may look great in full-size but when you put them to the proper size, details will be hard to see.