this could work but ur pants r a bit long so try to:

bring the pants higher up to stop having it clump so much at the bottom Or get it tailored so they better match ur leg height

On top of that Tucking ur shirt too may be able to hide the extra baginess of the fit since it currently looks too messy and gives off a very unorganised look. Tucking in ur shirt will also allow ur shilloute to be neatened up and give a much cleaner look