Agreed with saulc12. PJ has a zoom feature, so there's no need to upload a zoomed version. You're just taking away people's ability to see it smaller or at different zoom increments.
The running looks good, but the jumping(?) looks like the character's being lifted up by an unseen force rather than propelling themselves off the ground. It probably looks less odd in context where the character's moving around, and I assume that since this is for a game, you can't have lead-in into the jump (since that makes for icky controls). You can still improve the jump, I think. Don't reuse the mid-leap running sprite for vertical jumps - that pose would look good for forward jumps with no vertical component, but not for jumps with a noticeable upward motion. Instead, change the leg and arm positions to something that looks more like "this character just jumped up". You may also want to have separate frames for the character going up and coming down.
Nicely animated but you should upload this at its original size, rather than scaled...
Thanks for the advice guys! I'll replace this with it's original and see if i can enhance that (flight)jump. I will keep uploading the stuff i do for the game :) let's see how i improve!