You have a talent . Your reds yellows and blues in your sunsets are kinda captivating . However I don't get the dog thing ..they are too simply drawn and the backgronds are not interesting and rather simplistic . Go with what you have a talent for ....sunsets and waterscapes .
Oh and I checked Sapphire Sky as a no for one reason only . The overpowering white light in the middle is way too strong . Otherwise the piece would be very attractive . You captured the rest of the cosmos beautifully but the blinding white light in the middle in my opinion completely disrupts what would otherwise be a divine piece of art .