Noobs Signature Request

Hi there awesome artist!

i have a very simple favor to ask of you. i would just like a resized version of the gifs that i am using as my signature. this is in compliance to the signature size limit this forums implemented. that said, i am asking for your help on this as i am of no experience of resizing gif images while maintaining their quality.

dimension : 500x150

http://media.tumblr.com/tumblr_lozfneTxFz1qieicp.gif
http://0-media-cdn.foolz.us/ffuuka/board/a/image/1337/55/1337555341790.gif
http://static.tumblr.com/3nva4mf/oKxm3s8wn/clannadstarfish.gif
http://30.media.tumblr.com/tumblr_ly8hw1noO11qi5m1ro1_500.gif
http://24.media.tumblr.com/tumblr_maazwhxxxO1rfsim9o1_400.gif
http://24.media.tumblr.com/tumblr_lw2zabI72F1qd7h1xo1_500.gif
http://25.media.tumblr.com/tumblr_lyrirr1NMq1qd7h1xo1_500.gif
http://images.ados.fr/bd-manga/photo/hd/5457929545/gifs-divers/one-piece-3954618fa6.gif
http://25.media.tumblr.com/tumblr_mcqo2wKsYn1rphqfto1_500.gif
http://25.media.tumblr.com/tumblr_m4kw6reoXQ1rvpqu4o1_500.gif
http://25.media.tumblr.com/tumblr_m0aa19rmJ01qg8syuo1_400.gif
http://i566.photobucket.com/albums/ss107/dktoni/Bakemonogatari.gif
http://i5.photobucket.com/albums/y176/RenimMiner/Image%20Works/Bakemonogatari-OP2-Bus.gif
http://24.media.tumblr.com/tumblr_m0h4olEMkR1rozgayo1_500.gif
http://24.media.tumblr.com/tumblr_lor8t1lfDh1qhpkkqo1_400.gif
http://25.media.tumblr.com/98cf7a33572aa427d2515a52e7fa95a7/tumblr_mh266cxaUW1s19n1do1_500.gif

thanks in advance. ^^

 

Most of these will need to be below the limit to retain shape otherwise it will look nasty and warped....

 

T_T awwww. looks like i have to look for another set of sigs. below the sig limit.

but its still possible right?