Hello and welcome! Good work on the collection, moder and old school, nice combination. Pics can be up to 3MB in size, if larger then its possible to use an online image compressor (there's quite a few out there, something like https://compressjpeg.com
should work nicely). Look forward to seeing the cars!
How to post pics: When writing a message, scroll down and use the "attach file" option. Where possible, a photo sharing service can be used such as Flickr, Imgur etc. The image location (usually ending in .jpg) can be copy and pasted between the ][ brackets that appear when you click the 'Img' button (you can find this button at the top of the message box).
How to post youtube vids: Click on the 'youtubeHD' button at the top of the message box and in the middle of the ][ brackets that just appeared, copy and paste everything from the youtube web address that appears after the = sign i.e if this is the url: https://www.youtube.com/watch?v=K2cNqaPSHv0
just copy "K2cNqaPSHv0").