okay.... heavy critic.
-your blending is definately needing to improve. you see, when you put pokemon parts together, they must look as normal as possible. to get this you have to make outlines smooth, bended zones look normal, and shading and colours match. this is something you can't learn like that, it will come just with soem practice.
-modesty: as a begginer, you have to accept the fact that you won't be good from the beggining, so you have to becmoe good. how to do it? first, don't try things as hard as micing a pidgey with a lugia, it just won't work, even for great spriters. so start with simple things, mixing similar pokemon like pikachu/marril or vulpix/eevee. that's a good exercise to see what you can make.
-pixels aren't resizable: resizing... one of the first thing you have to know is that you can't resize sprites using the little dots around the selected zone, it will just kill the picture as pixels can't be smaller/bigger which will just make double pixels or delete some of them.
-recolouring: first of all, try not to do it manually with the filler tool, you should use the eraser tool, by selecting the colour to replace and setting the colour you want to use as background colour, then use the eraser tool with the right button, it will only recolour the pixels with the colour you selected.
-time: 2 weeks.... 13 sprites. you made at least one each day, which means you made them very quickly. take your time, it's essential, don't try to finish them in 5 minutes, stay into the same sprite for hours if needed, but don't give up so fast. now, when you've done something, ask for criticism, listen carefully and try fixing the errors, it's the best way of learning what you're doing wrongly.
so don't give up, keep making more, fix the errors, ask for critics and use them, it'll take some time but you'll understand how this work. good luck!
